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We are interested in the nature of cooperative motion in condensed matter. Our current research studies insulator-to-metal transitions in vanadium dioxide, superconductivity, terahertz spectroscopy of condensed matter and molecular crystals, and Quantum Hall systems. We utilize a number of electrical, time-integrated optical, and ultrafast optical spectroscopic techniques to study the ground state and optically perturbed materials.

Luke

• Mentors: New Programs Prove to Be Successful (October 2015)

• Physics-Chemistry Major Luke McClintock Earns 2015 Goldwater Scholarship (May 2015)

Michael

Jeremy

Aidan

• Physics Major Aidan O'Berine Earns 2016 Goldwater Scholar Honorable Mention

positions

Group Members

Ashlyn

Jedi

Robin

Ashlen

In the news:

Sith

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• Physics-Chemistry Major Luke McClintock Earns 2014 Goldwater Scholar Honorable Mention (May 2014)

Biplob

Padawan

Dave

Youngling

• Score! Three UAB researchers win #NSF CAREER awards in six months (February 17, 2011)

Takahisa

Jacob

positions

• Speed Metal: This Nano-discovery is a Really Big Deal (May 14, 2014)

Cody

Garrison

Dave and a former gradaute student, Dr. Nate Brady, in Campbell Hall 348E.

Peer-reviewed Publications:

Associate Professor of Physics and Electrical Engineering Ph. D: Cornell University, Applied Physics (2002) M.S: Cornell University, Applied Physics (2001)M.S.: University of Rochester, Optics (1999) B.S.: University of Rochester, Optics (1997) Email: dhilton@                Skype: davidhilton2303 Office: Campbell Hall 340Phone: +1-205-934-8189, Fax = +1-205-934-8042  

(Full CV)

Group Members - Dr. David J. Hilton

1.    Jeremy A. Curtis, Takahisa Tokumoto, Anthony T. Hatke, Judy G. Cherian, John L. Reno, Stephen A. McGill, Denis Karaiskaj, and David J. Hilton, "Cyclotron decay time of a two-dimensional electron gas from 0.4 to 100 K”, accepted for publication in Physical Review B (2016). 2.    P. Dey, J. Paul, Z. Wang, C. E. Stevens, C. Liu, A. H. Romero, J. Shan, D. J. Hilton, and D. Karaiskaj, “Optical Coherence in Atomic-Monolayer Transition-Metal Dichalcogenides Limited by Electron-Phonon Interactions”, Phys. Rev. Lett. 116, 127402 (2016). http://dx.doi.org/10.1103/PhysRevLett.116.1274023.   N. F. Brady, K. Appavoo, M. Seo, J. Nag, R. P. Prasankumar, R. F. Haglund Jr., and D. J. Hilton, “Heterogeneous nucleation and growth dynamics in the light-induced phase transition in vanadium dioxide”, J. Phys.:Cond. Matt. 28, 125603 (2016). http://dx.doi.org/10.1088/0953-8984/28/12/125603.4. P. Dey, J. Paul, G. Moody, C. E. Stevens, N. Glikin, Z. D. Kovalyuk, Z. R. Kudrynskyi, A. H. Romero, A. Cantarero, D. J. Hilton, and D. Karaiskaj, The Journal of Chemical Physics 142, 212422 (2015). http://dx.doi/org/10.1063/1.4917169.5. J. Paul, P. Dey, T Tokumoto, J L. .Reno, D. J. Hilton, and .D Karaiskaj, “Exploring two-dimensional electron gases with two-dimensional Fourier transform spectroscopy”, The Journal of Chemical Physics 141, 134505 (2014). http://dx.doi.org/10.1063/1.48967776. J. A. Curtis, Takahisa Tokumoto, Nicholas K. Nolan, Luke M. McClintock, Judy G. Cherian, Stephen A. McGill, and David J. Hilton, “Ultrafast Pump-probe Spectroscopy in Gallium Arsenide at 25 Tesla”, Optics Letters 39, 5772 (2014).  http://dx.doi.org/10.1364/OL.39.0057727. Kannatassen Appavoo, Nathaniel F. Brady Bin Wang Minah Seo, Joyeeta Nag, Rohit P. Prasankumar, Sokrates T. Pantelides, David J. Hilton, Richard F. Haglund Jr., “Ultrafast Phase Transition via Catastrophic Phonon Collapse Driven by Plasmonic Hot-Electron Injection,” NanoLetters, 14, 1127–1133 (2014).  http://dx.doi.org/10.1021/nl4044828. 8. N. F. Brady, J. M. Montgomery, G. Tsoi, T. Gebre, S. T. Weir, Y. K. Vohra and D. J. Hilton, “Equation of state and electrical resistivity of the heavy fermion superconductor CeCoIn5 to 51 GPa,” European Physical Journal B, 86, 334 (2013). http://dx.doi.org/10.1140/epjb/e2013-40563-79. D. J. Hilton, “Cyclotron Resonance Spectroscopy in a High Mobility Two Dimensional Electron Gas using Characteristic Matrix Methods,” Optics Express, 22, 29717-29726 (2012).  http://dx.doi.org/10.1364/OE.20.029717.10. Dmitry V. Martyshkin, Anton V. Fedorov, Anitha Arumugam, David J. Hilton, Vladimir V. Fedorov and Sergey B. Mirov, “Mid-IR volumetric Bragg grating based on LiF color center crystals,” Optical Materials Express, 2, 1209-1218 (2012). http://dx.doi.org/10.1364/OME.2.001209.11. T. Arikawa, X. Wang, D. J. Hilton, J. L. Reno, W. Pan, J. Kono, “Terahertz Coherent Control of a Landau-Quantized Two-Dimensional Electron Gas,” Physical Review B, 84, 241307 (4 pages) (2011). http://dx.doi.org/10.1103/PhysRevB.84.241307 (arxiv:1109.6062).12. X. Wang, D. J. Hilton, J. L. Reno, D. M. Mittleman, and J. Kono, “Direct Measurement of Cyclotron Coherence Times of High-Mobility Two-Dimensional Electron Gases,” Optics Express, 18, 12354-12361 (2010).  http://dx.doi.org/10.1364/OE.18.012354. (arXiv:1003.2795).  13. Lei Ren, Cary L. Pint, Layla G. Booshehri, William D. Rice, Xiangfeng Wang, David J. Hilton, Kei Takeya, Iwao Kawayama, Masayoshi Tonouchi, Robert H. Hauge and Junichiro Kono, “Carbon Nanotube Terahertz Polarizer,” Nano Letters, 9, 2610-2613 (2009). http://dx.doi.org/10.1021/nl900815s. (arXiv:0903.2583).14. D. J. Hilton, R. P. Prasankumar, E. J. Schelter,  V. K. Thorsmølle, S. A. Trugman, A. P. Shreve, J. L. Kiplinger, D. E. Morris, and A. J. Taylor, “Ultrafast Spectroscopy of the Uranium(IV) and Thorium(IV) (Bis)ketimide Complexes (C5Me5)2An[-N=C(Ph)(CH2Ph)]2 (An = Th, U),” Journal of Physical Chemistry A, 112,  7840-7847 (2008).  http://dx.doi.org/10.1021/jp800392b.15. D. J. Hilton, R. P. Prasankumar, S. Fourmaux, A. Cavalleri, D. Brassard, M. A. El Khakani, J. C. Kieffer, A. J. Taylor, and R. D. Averitt, “Enhanced photosusceptibility near Tc for the light-induced insulator-to-metal phase transition in vanadium dioxide,” Physical Review Letters, 99, 226401 (4 pages) (2007). http://dx.doi.org/10.1103/PhysRevLett.99.226401. (arXiv:0707.1054).16. X. Wang, D. J. Hilton, L. Ren, D. M. Mittleman, J. Kono and J. L. Reno," Time-Domain Cyclotron Resonance of a High-Mobility 2D Electron Gas,” Optics Letters, 32, 1845-1847 (2007). http://dx.doi.org/10.1364/OL.32.001845. (arXiv:0704.1883).17. C. A. Meserole, G. L. Fisher, D. J. Hilton, Q. X. Jia, D. J. Funk, and A. J. Taylor,  “Fe(001) thin films for x-ray diffraction and terahertz emission studies,” Journal of Vacuum Science and Technology A, 24, 1509-7003 (2006). http://dx.doi.org/10.1016/j.apsusc.2007.02.029. 18. D. J. Hilton, R. P. Prasankumar, S. A. Trugman, A. J. Taylor, and R. D. Averitt, “On photo-induced phenomena in complex materials: probing quasiparticle dynamics using infrared and far-infrared pulses” (invited), Journal of the Physical Society of Japan, 75 011006 (2006). http://dx.doi.org/10.1143/JPSJ.75.01100619. R. P. Prasankumar, A. Scopatz, D. J. Hilton, A. J. Taylor, R. D. Averitt, J. Zide, A. C. Gossard, “Carrier dynamics in self-assembled ErAs nanoislands in GaAs measured by optical pump-terahertz probe spectroscopy,” Applied Physics Letters, 86, 201107 (3 pages) (2005), http://dx.doi.org/10.1063/1.1923174.20. D. J. Hilton, R. D. Averitt, C. A. Meserole, G. L. Fisher, D. J. Funk, J. D. Thompson, A. J. Taylor, “Terahertz emission via ultrashort pulse excitation of magnetic metal films,” Optics Letters, 28, 1805-1807 (2004), http://dx.doi.org/10.1364/OL.29.001805.21. V. K. Thorsmølle, R. D. Averitt, X. Chi, D. J. Hilton, D. L. Smith, A. P.  Ramirez, A. J. Taylor, “Ultrafast conductivity dynamics in pentacene probed using terahertz spectroscopy,” Applied Physics Letters, 84, 891-893 (2004), http://dx.doi.org/10.1063/1.1644046, (arXiv:cond-mat/0401296).22. D. J. Hilton and C. L. Tang. “Optical orientation and femtosecond relaxation of spin-polarized holes in GaAs,” Physical Review Letters, 89, 146601 (4 pages) (2002), http://dx.doi.org/10.1103/PhysRevLett.89.146601. 23. F. Ganikhanov, K. C. Burr, D. J. Hilton and C. L. Tang. “Femtosecond optical-pulse-induced absorption and refractive-index changes in Gallium Arsenide,” Physical Review B, 60, 8890-8896 (1999), http://dx.doi.org/10.1103/PhysRevB.60.8890.

Dave and Jeremy with the Split Florida Helix 25 Tesla Magnet in Tallahassee

http://goo.gl/eJCh3

UAB.edu

Group Members - Dr. Takahisa Tokumoto

Takahisa, with a new THz magnetospectrometer under construction.

Postdoctoral ResearcherPh. D: Physics, Florida State University (2008) MS: Physics, The University of Tokyo (2001) BS: Physics, The University of Tokyo (1999) Email: takahisa@ Lab: Campbell Hall 348E/FOffice: +1-205-934-4736Fax: +1-205-934-8042

1. J. Paul, P. Dey, T. Tokumoto, J. L. Reno, D Hilton, and D. Karaiskaj, Exploring Two-Dimensional Electron Gases With Two-Dimensional Fourier Transform Spectroscopy Journal of Chemical Physics, 2. J. A. Curtis, T. Tokumoto, N. K. Nolan, L. M. McClintock, J. G. Cherian, S. A. McGill, and D. J. Hilton, Ultrafast Pump-probe Spectroscopy in Gallium Arsenide at 25 Tesla, Optics Letters, 39, 5772 (2014).3. J.G. Cherian, T. Tokumoto, H. Zhou, and S. A. McGill, Short-range magnetic interactions and optical band-edge physics in SrCu2(BO3)2, Phys. Rev. B, 90, 014405-014413 (2014).4. J. G. Cherian, T. Tokumoto, H. Zhou, E.S. Choi, and S. A. McGill, Electronic structure and magnetic symmetry in MnTiO3 analyzed by second harmonic generation, Phys. Rev. B, 87, 214411 (2013).5. O. Gunaydin-Sen, P. Chen, J. Fosso-Tande, T.L. Allen, J. Cherian, T. Tokumoto, Paul Lahti, Stephen McGill, Robert Harrison, and J. Musfeldt, Magnetoelectric coupling in 4, 4'-stilbenedinitrene, The Journal of Chemical Physics, 138, 204716(2013).6. D.E. Blumling, T. Tokumoto, S.A. McGill, K.L. Knappenberger, Temperature- and Field-Dependent Energy Transfer in CdSe Nanocrystal Aggregates Studied by Magneto-Photoluminescence Spectroscopy, Physical Chemistry Chemical Physics, 14(31), 11053 (2012).7. J.B. Whalen, R. Vasquez, F. Herrera, T. Besara, H.D. Zhou, R.L. Stillwell, S.W. Tozer, T. Tokumoto, S.A. McGill, J. Allen, M. Davidson, T. Siegrist, A new oxytelluride: Perovskite and CsCl intergrowth in Ba3Yb2O5Te, Journal of Solid State Chemistry, 203, 204-211 (2013).8. D.E. Blumling, T. Tokumoto, S.A. McGill, K.L. Knappenberger, Magneto- photoluminescence Properties of Colloidal CdSe Nanocrystal Aggregates, J. Phys. Chem. C, 115 (30), 14517 (2011).9. O. Gunaydın-Sen, J. Fosso-Tande, P. Chen, J. L. White, T. L. Allen, J. Cherian, and T. Tokumoto, P. M. Lahti, S. McGill, R. J. Harrison, and J. L. Musfeldt, Manipulating the singlet-triplet equilibrium in organic biradical materials, J. Chem. Phys. 135, 241101 (2011).10. T. Tokumoto, J. Cherian, H.D. Zhou, S.A. McGill, Raman and THz Time-Domain Spectroscopy of Spin-Frustrated BaCuSi2O6, manuscript in preparation.11. T. Tokumoto, J. Cherian, T. Gabre, P. Sahanggamu, S. Ghosh, H.D. Zhou, C.R. Wiebe, S.A. McGill, Optically-resolved Precursors to Field-Induced Insulator-Metal transitions in Orbital-ordered Pr0.5Ca0.5MnO3 and La0.84Ca0.16MnO3, submitted to Phys. Rev. Lett.12. T. Tokumoto, J.S. Brooks, E.S. Choi, H. Kobayashi, A. Kobayashi, H. Cui, J. van Tol, Lambda-(BETS)2GaCl4, manuscript in preparation.13. T. Tokumoto, J.S. Brooks, Y. Oshima, L.C. Brunel. E.S. Choi, D. Graf, G. Papavassiliou, J. van Tol, Exotic antiferromagnetic states in a tau-phase organic conductor, manuscript in preparation.14. J. S. Brooks, R. Vasic, A. Kismarahardja, E. Steven, T. Tokumoto, P. Schlottmann, and S. Kelly, Debye relaxation in high magnetic fields, Phys. Rev. B, 78, 045205 (2008).15. T. Tokumoto, J. S. Brooks, Y. Oshima, L.-C. Brunel. E.S. Choi, T. Kaihatsu, J. Yamada, J. van Tol, Antigferromagnetic d-electron exchange via a spin-singlet pi-electron ground state in an organic conductor, Phys. Rev. Lett., 100, 147602 (2008).16. K. Jeon, L. Lumata, T. Tokumoto, E. Steven, J. S. Brooks, and R. G. Alamo, Low electrical conductivity threshold and crystalline morphology of single-walled carbon nanotubes – high density polyethylene nanocomposites characterized by SEM, Raman spectroscopy and AFM, Polymer, 48, 4751 (2007)17. L. Channels, T. Tokumoto, E. Jobiliong, J. S. Brooks, S. Nellutla, and N. S. Dalal, Dielectric, Electron Paramagnetic Resonance and Transport Properties of Spanish Moss, J. Low Temp. Phys., 142, 663 (2006)18. Y. Oshima, T. Tokumoto, J. S. Brooks, H. Akutsu, J. Yamada, Electron spin resonance study of the organic conductor b-(BDA-TTP)2FeCl4, J. Low Temp. Phys., 142, 1573 (2006)19. S. Uji, T. Terashima, M. Nishimura, Y. Takahide, T. Konoike, K. Enomoto, H. Cui, H. Kobayashi, A. Kobayashi, H. Tanaka, M. Tokumoto, E. S. Choi, T. Tokumoto, D. Graf, and J. S. Brooks, Vortex dynamics and the Fulde-Ferrell-Larkin-Ovchinnikov state in a magnetic-field-induced organic superconductor, Phys. Rev. Lett., 97, 157001 (2006)20. T. Tokumoto, J. S. Brooks, D. Graf, E. S. Choi, N. Biskup, D. L. Eaton, J. E. Anthony and S. A. Odom, Persistent photo-excited conducting states in functionalized pentacene, Synth. Met., 152, 449 (2005)21. J. S. Brooks, T. Tokumoto, E. S. Choi, D. Graf, N. Biskup, D. L. Eaton, J. E. Anthony and S. A. Odom, Persistent photoexcited conducting states in functionalized pentacene, J. Appl. Phys., 96, 3312 (2004)22.  J. S. Brooks, R. Vasic, T. Tokumoto, D. Graf, O. H. Chung, J. E. Anthony, and S. A. Odom, Transport and melt processing in functionalized pentacene with ‘organic wire connections’, Current Appl. Phys., 4, 479-483 (2004)23. T. Tokumoto, E. Jobiliong, E. S. Choi, Y. Oshima, and J. S. Brooks, Electric and thermoelectric transport probes of metal–insulator and two-band magnetotransport behavior in graphite, Solid State Commun., 129, 599 (2004)24. T. Tokumoto, J. S. Brooks, R. Clinite, X. Wei, J. E. Anthony, D. L. Eaton, and S. R. Parkin, Photoresponse of the conductivity in functionalized pentacene compounds, J. Appl. Phys., 92 (9), 5208-5213 (2002)

1. Collingwood R, Gibson L, Sedlik S, Virmani R, Carter A. Stent Based ABT­578 Reduces Neointimal Formation in the Porcine Coronary Model. Catheterization and Cardiovascular Interventions. 2005 May 17; 65(2):227­232.2. Carter A, Wei W, Gibson L, Collingwood R, Tio F, Dooley J, Kopia G. Segmental Vessel WallShear Stress and Neointimal Formation after Sirolimus­Eluting Stent Implantation: Physiological Insights in a Porcine Coronary Model. Cardiovascular Revascularization Medicine. 2005 April­June;6(2):58­64.3. Carter A, Brodeur A, Collingwood R, Ross S, Gibson L, Wang C, Haller S, Coleman L, Virmani R. Experimental Efficacy of a Polymeric Everolimus Eluting Cobalt Chromium Stent. Catheterization and Cardiovascular Interventions. 2006 July;68(1):97­103. 4. Collingwood R, Bermudez E, Fischell T. Comparison Between Three­Dimensional Angiographic Reconstruction and Intravascular Ultrasound Imaging For The Measurement of Intracoronary Cross­Sectional Luminal Dimensions. Journal of Interventional Cardiology. 2009 June, 22(3): 277­281. 5. Timek TA, Hooker RL, Collingwood R, Davis AT, Alguire CT, Willekes CL, Murphy ET, Heiser JC, Patzelt LH. Five­year real world outcomes of GeoForm ring implantation in patients with ischemic mitral regurgitation. J Thorac Cardiovasc Surgery. 2014 February 21

MD: Michigan State University (2011)  Email: collingr@ Office: Campbell Hall 348EPhone: +1-205-934-8189, Fax = +1-205-934-8042 Research Interests: Femtosecond ablation 

Group Members - Dr. Robin Collingwood

Group Members - Jeremy Curtis

Peer-reviewed Publications, Presentations, and Conference Proceedings:

Jeremy (front) and undergraduate student Luke McClintock in the lab.

Degree: B.S. Physics, Middle Tennessee State University, 2008              M. S. Physics, UAB, 2011              Ph. D Physics, in progressE-mail: jcurtis4@ Office: CH 301A DoEd GAANN fellowship (2008-2014) Research Interests: Terahertz magneto-spectroscopy of two-dimensional Quantum Hall systems.

1. J. A. Curtis, Takahisa Tokumoto, Nicholas K. Nolan, Luke M. McClintock, Judy G. Cherian, Stephen A. McGill, and David J. Hilton, “Ultrafast Pump-probe Spectroscopy in Gallium Arsenide at 25 Tesla”, Optics Letters 39, 5772 (2014).  http://dx.doi.org/10.1364/OL.39.0057722. J. A. Curtis, B. R. Sangala, and D. J. Hilton, “Measurement of Decoherence Lifetimes in a High Mobility Two-Dimensional Electron Gas,” Proceedings of the XVIIIth International Conference on Ultrafast Phenomena, Lausanne, Switzerland, July 8-13, 2012 (10.1051/epjconf/20134104029). 3. J. A. Curtis, J. D. Moore, T. T. Tokumoto, J. G. Cherian, X. Wang, J. L. Reno, A. Belyanin, J. Kono, S. A. McGill, and D. J. Hilton, “The THz Magnetoconductivity Tensor in a High Mobility Two-dimensional Electron Gas,” International Conference on Infrared, Millimeter, and THz Waves, Houston, TX, October 2-7, 2011. (10.1109/irmmw-THz.2011.6104958).4. Nicholas Nolan, Jeremy Curtis, Takahisa Tokumoto, Judy G. Cherian, Stephen A. McGill, and David J. Hilton, “Ultrafast Pump-probe Spectroscopy in the Florida Split Helix Magnet”, Southeast APS Meeting, Bowling Green, KY, November 21, 2013. 5. Jeremy A. Curtis, Takahisa Tokumoto, Nicholas Nolan, Judy G. Cherian, Stephen A. McGill, and David J. Hilton, “Time-resolved Pump Probe Spectroscopy of (100)-GaAs to ±25 T”, Fundamental Optical Processes in Semiconductors, Kodiak Island, AK, August 12-16, 2013. 6. Jeremy Curtis, Andrew Steigerwald, John Reno, David J. Hilton, and Norman H. Tolk, “Resolving sub-phonon wavelength superlattices using photoacoustic spectroscopy,” APS March Meeting, Baltimore, MD, 2013, Feb 19-23, 2013 (Z23.00014).7. J. A. Curtis, B. R. Sangala, and D. J. Hilton, “Measurement of Decoherence Lifetimes in a High Mobility Two-Dimensional Electron Gas,” XVIIIth International Conference on Ultrafast Phenomena, Lausanne, Switzerland, July 8-13, 2012.8. J. A. Curtis, J. D. Moore, T. T. Tokumoto, J. G. Cherian, X. Wang, J. L. Reno, A. Belyanin, J. Kono, S. A. McGill, and D. J. Hilton, “Decoherence in a Two-dimensional Electron Gas,” Science and Technology Open House, Tuskegee University, Tuskegee, AL, April 13-14, 2012. 9, J. A. Curtis, J. D. Moore, T. T. Tokumoto, J. G. Cherian, X. Wang, J. L. Reno, A. Belyanin, J. Kono, S. A. McGill, and D. J. Hilton, “The THz Magnetoconductivity Tensor in a High Mobility Two-Dimensional Electron Gas.” International Conference on Infrared, Millimeter, and THz Waves, Houston, TX, October 2-7, 2011.10. J. A. Curtis, J. D. Moore, T. T. Tokumoto, J. G. Cherian, X. Wang, J. L. Reno, A. Belyanin, J. Kono, S. A. McGill, and D. J. Hilton, “Temperature Dependence of Cyclotron Decoherance Time in a High Mobility Two-Dimensional Electron Gas,” APS March Meeting, Dallas, TX, March 21-25, 2011 (T12.00014).11. Jeremy Curtis, Jon Moore, Takahisa T. Tokumoto, Judy Cherian, and Junichiro Kono, Alexey Belyanin, and Stephen McGill, and David Hilton, “The Terahertz Frequency Hall Conductivity of a High-Mobility Two-Dimensional Electron Gas,” APS March Meeting, Portland, OR, March 15-19, 2010 (T25.00012).12. J. A. Curtis, J. D. Moore, T. T. Tokumoto, J. G. Cherian, X. Wang, J. L. Reno, A. Belyanin, J. Kono, S. A. McGill, and D. J. Hilton, “The THz Frequency Hall Conductivity of a High-Mobility Two-Dimensional Electron Gas,” Frontiers in Optics, Rochester, NY, October 24-28, 2010. 13. J. A. Curtis, J. D. Moore, T. T. Tokumoto, J. G. Cherian, X. Wang, J. L. Reno, A. Belyanin, J. Kono, S. A. McGill, and D. J. Hilton, “The THz Frequency Hall Conductivity of a High-Mobility Two Dimensional Electron Gas,” Southeastern Section: American Physical Society, Baton Rouge, LA, October 20-23, 2010. 

Degree: B.S. Physics, UAB, (2016)              B.S. Chemistry, UAB, (2016) E-mail: lukemcc@ Lab: CH 348E Goldwater Scholar (2015)Research Interests: Terahertz magneto-spectroscopy of two-dimensional Quantum Hall systems.  Pb-based perovskites for solar cells.

Luke aligning an experiment at the 25 T magnet at NHMFL.

1.  J. A. Curtis, Takahisa Tokumoto, Nicholas K. Nolan, Luke M. McClintock, Judy G. Cherian, Stephen A. McGill, and David J. Hilton, “Ultrafast Pump-probe Spectroscopy in Gallium Arsenide at 25 Tesla”, accepted for publication in Optics Letters (2014).2. J. A. Curtis, T. T. Tokumoto, J. G. Cherian, X. Wang, L. M. McClintock, J. L. Reno, A. Belyanin, J. Kono, S. A. McGill, and D. J. Hilton. “Magnetic Field and Temperature Dependence of Decoherence in a High Mobility Landau Quantized 2DEG”, 79th Annual Meeting of the APS Southeastern Section, Tallahassee, November 2012.3. L. M. McClintock, J. A. Curtis, D. J. Hilton. “Construction of a THz-Time Domain Spectrometer in Reflection Geometry”, University of Alabama at Birmingham Summer Research Expo, Birmingham, July 2012.4. L. M. McClintock, J. A. Curtis, D. J. Hilton. “Construction of a THz-Time Domain Spectrometer in Reflection Geometry”, 79th Annual Meeting of the APS Southeastern Section, Tallahassee, November 2012.5. L. M. McClintock, J. A. Curtis, D. J. Hilton. “Terahertz Time-Domain Reflection Spectroscopy”, University of Alabama at Birmingham Research Expo, Birmingham, April 2013.6. McClintock, J.B., L.M. McClintock and J.M. Lawrence. "Mass mortality of the sea stars Luidia clathrata and Luidia alternata alternata on the Alabama coast", December 2013. Gulf of Mexico Science.   

Mentors: New Programs Prove to Be Successful (October 2015)

Physics-Chemistry Major Luke McClintock Earns 2015 Goldwater Scholarship

Physics-Chemistry Major Luke McClintock Earns 2014 Goldwater Scholar Honorable Mention

Group Members - Luke McClintock

Group Members - Andrew Garrison Linn

in progress

Degree: B.S. Physics, Birmingham Southern College, (2015)E-mail: aglinn@bsc.edu Lab: CH 348E Research Interests: Optical Pulse Shaping, Pump-probe Spectroscopy, Correlated Electron Systems NASA Rotordynamics intern (2014) President, BSC Society of Physics Students (2014) Teaching Assistant, General Physics (2013)

Group Members - Jackson Carr

Degree: B.S. Physics (honors), UAB, (2015)Minor concentrations in Mathematics and Chemistry E-mail: jcarr@UAB.edu Lab: CH 348E Research Interests: Analysis of Cosmic Ice Analogs with Terahertz Time Domain Spectroscopy  President, UAB Society of Physics Students Supplemental Instructor for the general physics courses Intern, Motus Motorcycles

Jackson Carr

Group Members - Ashlen Kurre

Degree: B.S. Physics, UAB, (2016)E-mail: akurre@UAB.edu Lab: CH 348E Research Interests: High Magnetic Field, Ultrafast Spectroscopy

Aidan buildign his TTDS setup

Group Members - Aidan O'Beirne

Degree: B.S. Physics, UAB, (2017)E-mail: aidan@uab.edu Lab: CH 348E Research Interests: Terahertz Time-domain Spectroscopy, Ultrafast Processes in Magnetic Materials Science and Technology Honors Program

http://goo.gl/eJCh3

Under Construction

• Score! Three UAB researchers win #NSF CAREER awards in six months (February 17, 2011)

Associate Professor of Physics (primary) and Electrical Engineering (secondary)Google Scholar:  Email: dhilton@ Office: Campbell Hall 340Phone: +1-205-934-8189, Fax = +1-205-934-8042 In the news:

Ultrafast Pump-probe in High Magnetic Field

Funding sources for our research program:

Terahertz Time-domain Spectroscopy

Terahertz Magnetospectroscopy

Research - Experimental Techniques

Symmetry reduced: P42/mnm (16)→ P21/c (8)Only a small distortion to the oxygen tetrahedron, with O 2pπ, 2pσ, and 2s states energetically far below EF. Tilting and pairing of V atoms from the c-axis. Two-fold symmetric screw axis along the b-axis and a glide plan along c in P21/c.Two unit cells in R become one unit cell in M1 (“cell doubling”). Electronic StructureSplitting of the V 3d∥ into antibonding states above EF and bonding states below EF. The V 3dπ state shifts up in energy above EF, opening a EG = 0.7 eV band gap. The role of the structure distortion in the electronic transition is the open question:  Mott or Peirels?

Research - Insulator-to-metal Phase Transitions

Ultrafast Phase Transition via Catastrophic Phonon Collapse Driven by Plasmonic Hot-Electron Injection

http://dx.doi.org/10.1021/nl4044828

Kannatassen Appavoo, Bin Wang, Nathaniel F. Brady, Minah Seo, Joyeeta Nag, Rohit P. Prasankumar, David J. Hilton, Sokrates T. Pantelides, Richard F. Haglund

Ultrafast photoinduced phase transitions could revolutionize data-storage and telecommunications technologies by modulating signals in integrated nanocircuits at terahertz speeds. In quantum phase-changing materials (PCMs), microscopic charge, lattice, and orbital degrees of freedom interact cooperatively to modify macroscopic electrical and optical properties. Although these interactions are well documented for bulk single crystals and thin films, little is known about the ultrafast dynamics of nanostructured PCMs when interfaced to another class of materials as in this case to active plasmonic elements. Here, we demonstrate how a mesh of gold nanoparticles, acting as a plasmonic photocathode, induces an ultrafast phase transition in nanostructured vanadium dioxide (VO2) when illuminated by a spectrally resonant femtosecond laser pulse. Hot electrons created by optical excitation of the surface-plasmon resonance in the gold nanomesh are injected ballistically across the Au/VO2 interface to induce a subpicosecond phase transformation in VO2. Density functional calculations show that a critical density of injected electrons leads to a catastrophic collapse of the 6 THz phonon mode, which has been linked in different experiments to VO2 phase transition. The demonstration of subpicosecond phase transformations that are triggered by optically induced electron injection opens the possibility of designing hybrid nanostructures with unique nonequilibrium properties as a critical step for all-optical nanophotonic devices with optimizable switching thresholds.

Research - Appavoo, NanoLetters (2014)

Research - 2D Systems

D. J. Hilton, Opt. Express 20, 29717 (2012).

J. A. Curtis, T. Tokumoto, N. K. Nolan, L. M. McClintock, J. G. Cherian, S. A. McGill, and D. J. Hilton, Optics Letters 39, 5772 (2014).

The Split Florida Helix Magnet system.

We have developed a novel experimental technique to study the ultrafast properties of materials in external magnetic fields as high as 25 T. This work is in collaboration with scientists at the National High Magnetic Field Labroatory on the campus of Florida State University.

Research - High Magnetic Field Ultrafast Spectroscopy

D. J. Hilton, T. Arikawa, T. Arikawa, J. Kono, and J. Kono, in Characterization of Materials, edited by E. N. Kaufmann, 2nd ed. (John Wiley and Sons, Inc, New York, 2012), p. 2438.

Research - Curtis, Optics Letters (2014)

We have performed high-fluence, nondegenerate pump–probe spectroscopy in the Split Florida-Helix magnet at 25 T and 15 K. The electronic component of our ultrafast differential reflectivity can be described with a simplified four-level approximation to determine the scattering and recombination rates. Ultrafast oscillations are well described by a coherent acoustic phonon model. Our free-space ultrafast spectroscopic technique will permit future experimental investigations to study novel photoinduced phase transitions and complex interactions in correlated electron systems, which will require the high pulse energies of our free-space alternative.

http://dx.doi.org/10.1364/OL.39.005772

Ultrafast pump–probe spectroscopy in gallium arsenide at 25 T

Jeremy A. Curtis, Takahisa Tokumoto, Nicholas K. Nolan, Luke M. McClintock, Judy G. Cherian, Stephen A. McGill, and David J. Hilton

Cyclotron resonance spectroscopy in a high mobility two dimensional electron gas using characteristic matrix methods

Research - Hilton, Optics Express (2012)

We develop a new characteristic matrix-based method to analyze cyclotron resonance experiments in high mobility two-dimensional electron gas samples where direct interference between primary and satellite reflections has previously limited the frequency resolution. This model is used to simulate experimental data taken using terahertz time-domain spectroscopy that show multiple pulses from the substrate with a separation of 15 ps that directly interfere in the time-domain. We determine a cyclotron dephasing lifetime of 15.1±0.5 ps at 1.5 K and 5.0±0.5 ps at 75 K.

http://dx.doi.org/10.1364/OE.20.029717

David J. Hilton

Prof. Yogesh K.Vohra

Prof. Norman Tolk

Prof. Richard Haglund

Dr. Steve McGill

Dr. Rohit Prasankumar

Prof. Denis Karaiskaj

Prof. Jie Shan

Research - Collaborations

• CAREER: Terahertz Magnetospectroscopy of Two-Dimensional Systems (DMR-1056827) 

• MRI: Development of a Free-Space Ultrafast Spectroscopy System for Chemistry, Materials Science, and Biophysics Research And Education In The 25-T Split-Coil Helix  (DMR-1229217)

• Exploring Two-dimensional Electron Gases at Extreme Magnetic Fields with Optical and Terahertz 2DFT spectroscopy (DMR-1409473) 

• RII: Enhancing Alabama's Research Capacity in Nano/Bio Science and Sensors (EPS-1158862) 

• Understanding valley spin coupling and two-dimensional exciton gases in layered materials at extreme magnetic fields (BES-0000214263)

Research - Funding

Teaching - Fall 2015 - PH221 (honors)

HONORS PHYSICS I - PH 221-2AA (Fall 2015) Instructor:         Prof. David J. Hilton 934-8189 (CH 340), E-mail: dhilton@uab.edu  Office Hours:         Tuesday, 9:30 am-12:00 in CH 340 and by appointment. Lecture PH221-2A:   Tuesday and Thursday, 8:00-9:15 am, Heritage Hall (HHB) Room 342.   Course Prerequisite: Calculus I and instructor permission.   Course Text: The formal textbook for this class is Halliday, Resnick, &Walker, Fundamentals of Physics, 9th Edition, volume 1.  In this honors class, we will not be following that book in the same order or covering the material in the same manner.  I will draw material for my lectures from a wide range of similar books.  You should consider my lecture notes as your primary resource describing the material in this class. Required Co-requisites: You must enroll in lab (PH 221L) and recitation section associated with PH 221H (see below) during the same semester you take PH 221 (lecture). Failure to enroll for all three components by the drop date will result in being automatically dropped from this course.  Recitation PH221R: Students are required to register and attend the recitation.  These begin the week of Sept 2. You should come to recitation period prepared for a short (approx. 15-minute) quiz on material previously covered in class. Quizzes may not be given at each class meeting, but will NOT be announced ahead of time. These will be in open-book/open-notes format, BUT they will also be strictly limited in time. Lab PH221L: The UAB Department of Physics will no longer allow students to use grades made in a lab section from a previous semester when retaking any of the courses in the PH201-202 or PH221-222 course sequence.  Lab begins the week of Sept 2. Assignments, protocol, due dates, and grading of labs will be discussed in the first lab meeting. You are required to get the lab manual materials which are available in the campus bookstore before the first day of lab. Tests and Exams: Two prelim exams (in class) and one comprehensive final exam (2.5 hours) will be given. Textbook, notebooks, and notes are not allowed in the exams unless otherwise noted. A scientific calculator may be used as long as it has no onboard memory (please check with me if you have questions), but you may not use a cell phone calculator. The tests and exams will be based on problems related to homework problems and problems discussed in class. The intent of the test & exam problems will be to test your understanding of physics principles and to test your ability to apply these principles to practice.  Full credit will be awarded only if the right answer is obtained for the right reason, but with partial credit awarded for correct steps and techniques even if the answer is wrong.    Homework: Homework is electronically processed using an internet website: http://www.webassign.net/uab/login.html.  It is important to enter this web page ASAP and use the class key “uab 0269 6696” to enroll in the class.  To solve homework problems, you need internet access and a web browser; students who do not have internet access can use computers in Stern Library.  You are responsible for buying a WebAssign key either with the text book, separately at the bookstore, or online.  Please make sure you are buying a correct code, as codes for different subjects do not work with this book.  If you are looking online for textbooks, please make sure you are buying the correct version as the publisher makes several different ones.  You are strongly advised to start homework when a problem set is given. It is absolutely critical to work these problems yourselves when they are assigned, since this will help to lock in understanding of the physical principles learned from class and the textbook and develop problem-solving skills, which will be necessary for any type of success on the exams.  Developing the necessary problem solving skills will only come from personally going through the struggle of working homework problems yourself.   Electronic Homework Resources: A number of online websites are available that can essentially solve WebAssign problems for you.  The use of these resources is clearly a violation of the UAB Academic Honest Policy that explicitly forbids “CHEATING: use or attempted use of unauthorized materials, information, study aids, the answers of others, or computer-related information.” and “PLAGIARISM: claiming as your own the ideas, words, data, computer programs, creative compositions, artwork, etc., done by someone else. Examples include improper citation of referenced works, use of commercially available scholarly papers, failure to cite sources, or copying other’s ideas.”   Per the UAB Academic Honor Code, violations are punishable by a range of penalties from receiving a failing grade on an assignment or examination to an F in the course.  This class is a “one strike and you are out” zone.  If I find out you are using unapproved resources while doing your homework or during exams, I will charge you with a violation of the Honor code and assign you an “F” for this class.  I encourage you to stop by my office to discuss alternate, acceptable sources of extra help in this class before relying on potentially unapproved sources.     Course Description: This first term of calculus-based Physics will cover linear and planar motion, Newton’s Laws, work and energy, gravitation, momentum, rigid body motion, fluids, equilibrium, oscillations and waves, sound, and interference phenomena.   Course Learning Objectives: 1. Demonstrate knowledge and understanding of linear and rotational kinematics and dynamics, statics, work and energy, impulse and momentum, oscillation, waves and interference phenomena.  2. Demonstrate ability to interpret data and apply the knowledge of the fundamental mechanics concepts as well as quantitative reasoning and mathematical analysis skills to effectively solve problems. You should be able to:       read a description of the problem and translate nonscientific prose into the language of physics, identifying key physical variables that point to a solution       set up a figure or diagram to assist in analyzing the problem     determine a relationship between the given physical quantities and the ones to be found      carry out mathematical operations to arrive to a solution.  3. Demonstrate (in the associated laboratory) the ability to collect, evaluate and communicate scientific information.  Measurement of Learning Objectives: Homework problem sets, quizzes, and exams will be used regularly to measure understanding of the fundamental concepts presented as well as your ability to apply this understanding to problems in mechanics. Problem sets and exams also will evaluate the progression of your understanding of physical concepts and problem solving skills. Related UAB Core Learning Outcomes: Students successfully completing this course will demonstrate knowledge of fundamental concepts in mechanics and the ability to apply this knowledge and mathematical skills in calculus and vectors for quantitative reasoning and problem solving. Quizzes: You should come to recitation period prepared for a short 10- or 15-minute quiz on material previously covered in class. Quizzes may not be given at each class meeting, but will NOT be announced ahead of time.  These will be in open-book/open-notes format, BUT they will also be strictly limited in time; “winging it” will not work -- come prepared. Disability Services: If you are already registered with Disability Support Services (DSS), please make an appointment with me to discuss accommodations that may be necessary.  For questions related to applying for services, you can contact DSS at 205-934-4205, dss@uab.edu, or visit them at the 9th Avenue Office Building, 1701 9th Avenue South. Students with disabilities must be registered with DSS and provide an accommodation request letter before receiving accommodations for class Early Alert System (EAS): The early alert system is a notification I will use during the months of September/October to indicate that your performance is at or below a “D” in this class.  EAS is designed to help students be more successful academically at UAB. If you receive an email with EAS in the title, please open it, read it and take advantage of the support that UAB offers to all students. UAB is committed to ensuring that students receive academic support and are aware of the resources available that will help assist them in successfully completing their degree program.  Grade:                         Homework:        15%                             150 pts                         Lab:        15%                           150 pts                         In-class Tests:                                20+20=40%                    400 pts Recitation Quizzes                         10%                 100 pts             Final Exam        20%                             200 pts           Total:       100%                          1000 pts   There will be no make-up tests and exams. Exceptions for the most extraordinary circumstances (documented illness, etc.) will be granted provided proper documentation is provided; in this case, the final and the other exam will be worth 30% each.   Excessive traffic on I-65 or oversleeping are NOT valid excuses.  A: 85% or above B: 70%-84% C: 60%-69% D: 50%-59% F: 49% and below  

HONORS PHYSICS II - PH 222H (Spring 2015) Instructor:Prof. David J. Hilton 934-8189, E-mail: dhilton@uab.edu  Office Hours: Tuesday, 9:30 am-12:00 in CH 340 and by appointment.  Required Co-requisites: You must enroll in lab (PH 222L) and the recitation section associated with PH 222 (see below) during the same semester you take PH222 (lecture).    Lecture PH222: Tuesday and Thursday, 8:00-9:15 am, Heritage Hall Room 342.  Recitation PH222R: Students are required to register and attend the recitation.  These begin Jan 12 (second week). PH 222R Thursday 05:00 PM-05:50 PM You should come to recitation period prepared for a short 10- or 15-minute Quiz on material previously covered in class. Quizzes may not be given at each class meeting, but will NOT be announced ahead of time. These will be in open-book/open-notes format, BUT they will also be strictly limited in time. Lab PH222L: The UAB Department of Physics will no longer allow students to use grades made in a lab section from a previous semester when retaking any of the courses in the PH201-202 or PH221-222 course sequence.  Lab begins the week of Jan 12 (second week). Assignments, protocol, due dates, and grading of labs will be discussed in the first lab meeting. You are required to get the lab manual materials which are available in the campus bookstore before the first day of lab. Course Text: Halliday, Resnick &Walker, Fundamentals of Physics, volume 2.  This class uses the online WebAssign system for homework problems.  You are responsible for buying a WebAssign key either with the text book, separately at the bookstore, or online.  Please make sure you are buying a correct code, as codes for different subjects do not work with this book.  If you are looking online for textbooks, please make sure you are buying the correct version as the publisher makes several different ones.   Tests and Exams: Two prelim exams and one comprehensive final exam (2.5 hours) will be given. Textbook and notebooks are not allowed in the exams unless otherwise noted. One letter-size formula information sheet is allowed and must be turned in with your exam. A scientific calculator may be used as long as it has no onboard memory (please check with me if you have questions), but you may not use a cell phone calculator. The tests & exams will be based on problems related to (but often with important differences) homework problems and problems discussed in class. The intent of the test & exam problems will be to test your understanding of physics principles and to test your ability to apply these principles to practice.  Full credit will be awarded only if the right answer is obtained for the right reason, but with partial credit awarded for correct steps and techniques even if the answer is wrong.   Homework: Homework is electronically processed using an internet website: http://www.webassign.net/uab/login.html.  The UAB self enrollment key is “uab 4869 2185”.  It is important to enter this web page ASAP, successfully authenticate using your BlazerID, and after that you will be automatically added to your roster. You are strongly advised to start homework when a problem set is given. It is absolutely critical to work these problems yourselves when they are assigned, since this will help to lock in understanding of the physical principles learned from class and the textbook and develop problem-solving skills, which will be necessary for any type of success on the exams.  Electronic Homework Resources: A number of online websites are available that can essentially solve WebAssign problems for you.  The use of these resources is clearly a violation of the UAB Academic Honest Policy that explicitly forbids “CHEATING: use or attempted use of unauthorized materials, information, study aids, the answers of others, or computer-related information.” and “PLAGIARISM: claiming as your own the ideas, words, data, computer programs, creative compositions, artwork, etc., done by someone else. Examples include improper citation of referenced works, use of commercially available scholarly papers, failure to cite sources, or copying other’s ideas.”  Violations of the UAB Academic Honor Code are punishable by a range of penalties from receiving a failing grade on an assignment or examination to an F in the course.  This class is a “one strike and you are out” zone…if I find out you are using unapproved resources while doing your homework, I will charge you with a violation of the Honor code and assign you an “F” for this class.  I encourage you to stop by my office to discuss alternate, acceptable sources of extra help in this class before relying on potentially unapproved sources.  A link to the Academic catalog that describes the honesty policy in greater detail (page 98) can be found by following this link: http://goo.gl/UDt5Q, along with further context for the quotations above that have been cited from this document.   Course Description: This second term of calculus-based Physics will cover electric charge, electric field, electric potential, capacitance, current, circuits, magnetic fields, induction, alternating current and circuits, electromagnetic waves, optics, interference and diffraction phenomena.  We will use trigonometry, vectors, differential and integral calculus as tools to quantify our study. It is essential that you keep up with the material covered; do not try to catch up after a lapse of several lectures.    Course learning objectives:  Demonstrate knowledge and understanding of fundamental ideas of electromagnetism and optics.Demonstrate ability to interpret data and apply the knowledge of the fundamental electromagnetism and optics ideas as well as quantitative reasoning and mathematical analysis skills to effectively solve problems. You should be able to: Read a description of the problem and translate nonscientific prose into the language of physics, identifying key physical variables that point to a solutionSet up a figure or diagram to assist in analyzing the problemDetermine a relationship between the given physical quantities and the ones to be foundCarry out mathematical operations to arrive to a solution.Demonstrate (in the associated laboratory) the ability to collect, evaluate and communicate scientific information  Measurement of learning objectives: Homework problem sets and exams will be used regularly to measure understanding of the fundamental ideas presented as well as students’ abilities to apply this understanding to problems in electromagnetism and optics. Both, problem sets and exams also provide an opportunity to evaluate the progression of students’ understanding of physical ideas and problem solving skills. Related UAB core learning outcomes: Students successfully completing this course will demonstrate knowledge of fundamental ideas in electromagnetism and optics and the ability to apply this knowledge and mathematical skills in calculus and vectors for quantitative reasoning and problem solving. Quizzes: You should come to recitation period prepared for a short 10- or 15-minute quiz on material previously covered in class. Quizzes may not be given at each class meeting, but will NOT be announced ahead of time, and, when given, will be given at the end of the period.  These will be in open-book/open-notes format, BUT they will also be strictly limited in time; “winging it” won’t work -- come prepared. Grade:                                Homework: 15%                             150 pts                          Lab:15%                            150 pts                            In-class Tests 1&2:                        30%            300 pts          Quizzes                                          10%                  100 pts             Final Exam  30%                             300 pts               TOTAL: 100%                   1000 pts  There will be no make-up tests and exams. Exceptions for the most extraordinary circumstances (documented illness, etc.) will be granted provided proper documentation is provided.   Traffic on I-65 is NOT a valid excuse.  A: 85% or above B: 75%-84% C: 65%-74% D: 55%-64% F: 54% and below The last day to withdraw from this class is March 31, 2015.   Early Alert System (EAS): The early alert system is a notification I will use during the months of January/February to indicate that your performance is at or below a “D” in this class.  EAS is designed to help students be more successful academically at UAB. If you receive an email with EAS in the title, please open it, read it and take advantage of the support that UAB offers to all students. UAB is committed to ensuring that students receive academic support and are students. UAB is committed to ensuring that students receive academic support and are aware of the resources available that will help assist them in successfully completing their degree program.

Teaching - Spring 2015 - PH222 (honors)

     Students must be entering 9th grade in the Fall of 2015 and submit the application with all supporting materials by 5:00 pm April 15, 2015 to the CORD Office by mail, or Fax (205-934-5158) or by E-Mail (ccord@uab.edu).

The application for this program can be found here:

PhysicsBridge 2015 Application

Physics Bridge 2015 (July 13-15, 2015)           PhysicsBridge is a non-residential program designed for rising 9th grade students.  It is a three day (9 am - 4:30 pm) introductory hands on laboratory and seminar course.   PhysicsBridge provides area 8th grade graduates with an exciting experience in optics, lasers, and light by conducting hands on experiments working with great UAB faculty, students, and staff to understand physics.  This experience is designed to help prepare students for careers in STEM fields.           This program is a partnership between the UAB Department of Physics and CORD.  PhysicsBridge will promote a student’s interest in science by introducing the principles, methods, applications, and a thorough hands-on experience in laboratories at UAB in the Department of Physics.

Outreach

Visiting UAB

Nearby Parking:Parking meters are available in Lot 15A, on the West side of 13th Street. From Birmingham-Shuttlesworth International Airport (BHM):Head west on Messer Airport Highway Slight right to stay on Messer Airport Highway Take the ramp onto I-20 W/I-59 S. Take exit 126A to merge onto AL-3 S/US-280 E/US-31 S Take the 8th Ave S exit From the East: (I-20W/I-59S) Take the ramp onto I-20 W/I-59 S. Take exit 126A to merge onto AL-3 S/US-280 E/US-31 S Take the 8th Ave S exit Turn right at 8th Ave S/University Blvd. Campbell Hall is on your right at the intersection of University and 13th S South.     From the West:(I-20E/I-59N) Take exit 124A to merge onto I-65 S toward Montgomery Take exit 259B to merge onto 4th Ave S Turn right at 14th St S Turn right at University Blvd. Campbell Hall is on your left at the intersection of University and 13th S South.   From the South (I-65N): Take exit 259 to merge onto University Blvd. Campbell Hall is on your left at the intersection of University and 13th S South.   From the North (I-65S): Take exit 259B to merge onto 4th Ave S. Turn right at 13th St S Campbell Hall is on your left at the intersection of University and 13th S South.  

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We are always looking for talented students to join one of our active reserach projects.  If you have been admitted to the UAB Physics program, please contact Dr. Hilton to talk about your interests.  If you are not admitted as a UAB student, then you would need to be admitted first.  Information on our graduate program can be found on the main UAB Physics Website (http://www.uab.edu/cas/physics/graduate).

Open Positions

Graduate Students

We are looking to have a talented UAB physics undergradute major (or from closely related field) who is interested in learning terahertz spectroscopy and contrinuting to our high magnetic field spectroscopy research program. Interested students should contact Dr. Hilton.

Undergrads

We have no open poisitons at this time.  

The University of South Florida (USF) and the University of Alabama at Birmingham (UAB) invite applications for two postdoctoral positions in Condensed Matter Physics in high magnetic fields.  The first position will be located at USF, under the supervision of Denis Karaiskaj, while the second will be located at UAB in the research group of David Hilton.  Both postdocs will join the three-campus research team that includes researchers from Penn State to develop novel experimental probes of two-dimensional materials (MoSe2, WSe2, GaSe, InSe, etc.). These probes include 2DFT measurements at extremely high magnetic fields using the new 25T Split Florida Helix magnet at the National High Magnetic Field Laboratory at Florida State University. The ideal applicant will have experience in the physics of two-dimensional systems and experimental ultrafast optical spectroscopy. In particular, applicants with experience in multidimensional spectroscopy are most desired.  Applicants are required to have a Ph. D. in physics, electrical engineering, chemistry, optics, or a closely related field, with a demonstrated potential for exceptional research. Inquires about both positions should be directed to Denis Karaiskaj (karaiskaj@usf.edu).  Applications will be accepted via email (karaiskaj@usf.edu) and should include a complete CV along with the names and contact information of three referees.  Review of applications will begin immediately and continue until both positions are filled.

Postdoc

Group Members - Cody Jett

Degree: B.S. Physics, UAB, (2017)E-mail: codyjett@uab.edu Lab: CH 348E Research Interests: Terahertz Time-domain Spectroscopy, Transport in monolayer dichalcogenides 

1. T. Scrace, Y. Tsai, B. Barman, L. Schweidenback, A. Petrou, G. Kioseoglou, I. Ozfidan, M. Korkusinski, and P. Hawrylak. “Magnetoluminescence and Valley Polarized State of Two-dimensional Electron Gas in WS2 Monolayers.” Nature Nanotech. 10, 603 (2015).2. B. Barman, R. Oszwałdowski, L. Schweidenback, A. H. Russ, W-C. Chou, W. C. Fan, J. R. Murphy, A. N. Cartwright, I. R. Sellers, A. G. Petukhov, I. Žutić, B. D. McCombe and A. Petrou. “Time-resolved magneto-photoluminescence studies of magnetic polaron dynamics in type-II quantum dots.” Phys. Rev. B 92, 035430 (2015).3. Y. Tsai, B. Barman, T. Scrace, M. Fukuda, V. Whiteside, I. Sellers, Mathieu Leroux, Mohamed Al Khalfioui, and A. Petrou. “Photoluminescence study of Be-acceptors in GaInNAs epilayers”, J. Appl. Phys. 117, 045705 (2015).4. B. Barman, Y. Tsai, T.Scrace, J.R.Murphy, A.N.Cartwright, J. M. Pientka, I.Zutic, B.D. McCombe, A. Petrou, I. R. Sellers, R.Oszwaldowski, A.Petukhov, W.C.Fan, W.C.Chou, C.S. Yang. “Conventional vs Unconventional Magnetic Polarons: ZnMnTe/ZnSe and ZnTe/ZnMnSe Quantum Dots.” Proc. SPIE 9167, Spintronics VII, 91670L .5. Y. Tsai, B.  Barman, T. Scrace, G. Lindberg, M. Fukuda, V. R. Whiteside, J. C. Keay, M. B. Johnson, I. R. Sellers, M. Al Khalfioui, M. Leroux, B.A. Weinstein, and A. Petrou. “Probing the Nature of Carrier Localization in GaInNAs epilayers by Optical Methods.” Appl. Phys. Lett. 103, 012104 (2013).6. Gen Long, Biplob Barman, Savas Delikanli, Yu Tsung Tsai, Peihong Zhang, Athos Petrou, and Hao Zeng. “Carrier-dopant exchange interactions in Mn-doped PbS colloidal quantum dots.” Appl. Phys. Lett. 101, 062410 (2012).

Group Members - Dr. Biplob Barman

Postdoctoral ResearcherPh. D: Physics, SUNY Buffalo (2015) MS: Physics, University of Delhi, India (2007) BS: Physics, University of Delhi, India (2005) Email: bbarman@ Lab: Campbell Hall 348E/FOffice: +1-205-934-4736Fax: +1-205-934-8042

Degree: B.S. Physics, Georgia College, (2015)Minor concentrations in Mathematics and Chemistry E-mail: ashbur@uab.eduLab: CH 348E Research Interests: Terahertz Spectrosocpy in high B

Group Members - Ashlyn Burch