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Browsing Faculty Research Publications (Physics) by Title

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Browsing Faculty Research Publications (Physics) by Title

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  • Johnson, Brian; Kendrick, Mark J.; Ostroverkhova, Oksana (American Institute of Physics, 2013-09-04)
    We present a model that describes nanosecond (ns) time-scale photocurrent dynamics in functionalized anthradithiophene (ADT) films and ADT-based donor-acceptor (D/A) composites. By fitting numerically simulated photocurr ...
  • Hughes, Jessica; Krebs, Eric J.; Roundy, David (American Institute of Physics, 2013-01-14)
    We develop a classical density functional for water which combines the White Bear fundamental-measure theory (FMT) functional for the hard sphere fluid with attractive interactions based on the statistical associating fl ...
  • Zwolak, Michael; Zurek, Wojciech H. (Nature Publishing Group, 2013-05-20)
    The sum of the Holevo quantity (that bounds the capacity of quantum channels to transmit classical information about an observable) and the quantum discord (a measure of the quantumness of correlations of that observable ...
  • Foster, D. H.; Barras, F. L.; Vielma, J. M.; Schneider, G. (American Physical Society, 2013-11-08)
    The p-type semiconductor Cu₃PSe₄ has recently been established to have a direct band gap of 1.4 eV and an optical absorption spectrum similar to GaAs [Foster et al., Appl. Phys. Lett. 99, 181903 (2011)], suggesting a p ...
  • Zakutayev, A.; Tate, J.; Schneider, G. (The American Physical Society, 2010-11-15)
    Native point defects, defect complexes, and oxygen impurities in BaCuChF were studied using density functional theory calculations, self-consistent thermodynamic simulations, and various experimental techniques. Uninte ...
  • Liu, Weimin; Wang, Liang; Han, Fangyuan; Fang, Chong (Optical Society of America, 2013-09-01)
    We achieve a series of distinct broadband third-harmonic generation (THG) signals at the amorphous glass–air interface attributed to third-order and cascaded third-order nonlinear processes. A novel THG laser sideband a ...
  • Hoffman, R. L.; Wager, J. F.; Jayaraj, M. K.; Tate, J. (American Institute of Physics, 2001-12-01)
    Transparent p – i – n heterojunction diodes are fabricated using heavily doped, p-type CuYO₂ and semi-insulating i-ZnO thin films deposited onto a glass substrate coated with n-type indium tin oxide. Rectification is o ...
  • Zakutayev, Andriy; Tate, Janet; Platt, Heather A. S.; Keszler, Douglas A.; Hein, Corinna; Mayer, Thomas; Klein, Andreas; Jaegermann, Wolfram (American Institute of Physics, 2010-05-15)
    BaCuChF (Ch=S,Se,Te) surfaces and BaCuSeF interfaces with zinc phthalocyanine (ZnPc) were studied by photoelectron spectroscopy. BaCuChF compounds oxidize when exposed to ambient atmosphere. Se capping layers were studie ...
  • Zakutayev, A.; Kykyneshi, R.; Schneider, G.; McIntyre, D. H.; Tate, J. (The American Physical Society, 2010-04-15)
    Double excitonic absorption peaks are observed in textured BaCuSF and BaCuSeF thin films. The excitonic doublet separation increases with increasing fraction of heavy chalcogen in the thin-film solid solutions, in good a ...
  • Karapetrov, Goran; Tate, Janet (The American Physical Society, 1995-08-01)
    We have measured sweep-rate-dependent magnetization hysteresis curves of thin-film Bi₂Sr₂CaCu₂O[subscript 8+δ] using a Hall probe magnetometer in an unconventional geometry. We find a structure in the response well below ...
  • Sim, Sangwan; Park, Jusang; Song, Jeong-Gyu; In, Chihun; Lee, Yun-Shik; Kim, Hyungjun; Choi, Hyunyong (American Physical Society, 2013-08-27)
    We report ultrafast pump-probe spectroscopy examining exciton dynamics in atomically thin MoS2. Spectrally and temporally resolved measurements are performed to investigate the interaction dynamics of two important direc ...
  • Kustusch, Mary Bridget; Roundy, David; Dray, Tevian; Manogue, Corinne (American Institute of Physics, 2013-01)
    Several studies in recent years have demonstrated that upper-division students struggle with partial derivatives and the complicated chain rules ubiquitous in thermodynamics. We asked several experts (primarily faculty ...
  • Roundy, David; Rogers, Michael (American Association of Physics Teachers, 2013-01)
    We describe an upper-division experiment in thermal physics where students measure the tension of a rubber band as a function of temperature and length, and use a Maxwell relation to find the change in internal energy ...
  • Krane, K. S.; Keck, M. L.; Norman, E. B.; Shivprasad, A. P. (Elsevier, 2012-04)
    In order to resolve a long-standing discrepancy of some 30 standard deviations between the two most precise previously reported values of the γ-ray energies in the ³⁸Cl decays, we have undertaken a new precision measurem ...
  • Cibula, Matthew A; McIntyre, David H. (Optical Society of America, 2013-08-01)
    We present a general approach for optimizing the diffraction efficiency of a phase-type spatial light modulator (SLM). While the SLM displays a one-dimensional phase grating, the phase shift of one pixel in the grating i ...
  • Danielson, J. R.; Amer, N.; Lee, Yun-Shik (American Institute of Physics, 2006-11-22)
    The authors demonstrate a flexible terahertz pulse-shaping technique, manipulating spatially dispersed multifrequency components generated by optical rectification in a fanned-out periodically poled lithium niobate cry ...
  • Lee, Yun-Shik; Hurlbut, Walter C.; Vodopyanov, K. L; Fejer, M. M.; Kozlov, V. G. (American Institute of Physics, 2006-10-30)
    The authors demonstrate the generation of multicycle narrow-bandwidth terahertz pulses in periodically inverted GaAs structures using optical rectification of 2 μm, 100 fs pump pulses. Three different types of orientat ...
  • Amer, N.; Hurlbut, Walter C.; Norton, B. J.; Lee, Yun-Shik; Norris, T. B. (American Institute of Physics, 2005-11-23)
    We employ two different methods to generate controllable elliptical polarization of teraherz (THz) pulses. First, THz pulses are generated via optical rectification in nonlinear crystals using a pair of temporally sepa ...
  • Newhouse, Paul F.; Park, C.-H.; Keszler, Douglas A.; Tate, J.; Nyholm, P. S. (American Institute of Physics, 2005-09-09)
    High electron mobility thin films of In₂₋ₓWₓO₃₊y(0≤x≤0.075) were prepared on amorphous SiO₂ and single-crystal yttria-stablized zirconia (001) substrates by pulsed laser deposition. Mobilities ranged between 66 and 112 ...
  • Tomaino, J. L.; Jameson, A. D.; Paul, M. J.; Kevek, J. W.; van der Zande, A. M.; Barton, R. A.; Choi, H.; McEuen, P. L.; Minot, E. D.; Lee, Yun-Shik (Springer, 2012-08)
    We demonstrate terahertz (THz) imaging and spectroscopy of single-layer graphene deposited on an intrinsic Si substrate using THz time-domain spectroscopy. A single-cycle THz pulse undergoes multiple internal reflections ...

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