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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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  • 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 ...
  • Ajith, P.; Fotopoulos, N.; Privitera, S.; Neunzert, A.; Mazumder, N.; Weinstein, A. J. (American Physical Society, 2014-04-08)
    We report the construction of a three-dimensional template bank for the search for gravitational waves from inspiralling binaries consisting of spinning compact objects. The parameter space consists of two dimensions d ...
  • 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 ...
  • Paudel, Keshab; Johnson, Brian; Thieme, Mattson; Haley, Michael M.; Payne, Marcia M.; Anthony, John E.; Ostroverkhova, Oksana (American Institute of Physics Publishing, 2014-07-28)
    We examined sub-nanosecond time-scale charge carrier dynamics in crystalline films of a functionalized anthradithiophene (ADT) donor (D) with three different acceptor (A) molecules. A four-fold enhancement in ultrafast ...
  • 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 ...
  • Paul, M. J.; Chang, Y. C.; Thompson, Z. J.; Stickel, A.; Wardini, J.; Choi, H.; Minot, E. D.; Norris, T. B.; Lee, Yun-Shik (IOP Publishing Ltd, 2013-08-22)
    We investigate the response of multi-layer epitaxial graphene and chemical vapor deposition (CVD)-grown single-layer graphene to strong terahertz (THz) fields. Contrary to theoretical predictions of strong nonlinear resp ...

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