00708nas a2200229 4500008004500000020001400045245011700059210006900176260000800245300001400253490000800267653001500275100001700290700001700307700001700324700002300341700001600364700001200380700001700392700002000409856004900429 2018 Engldsh a0006-349500aIncrease in Dynamical Collectivity and Directionality of Orange Carotenoid Protein in the Photo-Protective State0 aIncrease in Dynamical Collectivity and Directionality of Orange cFeb a522A-522A0 v11410aBiophysics1 aDeng, Y., T.1 aLuck, C., H.1 aRomo, T., D.1 aGrossfield, A., M.1 aBandara, S.1 aRen, Z.1 aYang, X., J.1 aMarkelz, A., G. uhttps://markelz.physics.buffalo.edu/node/24700410nas a2200121 4500008004100000245007200041210006900113490001200182100001300194700001100207700001600218856005400234 2018 eng d00aInvestigation of the Isotope Shift in Protein Collective Vibrations0 aInvestigation of the Isotope Shift in Protein Collective Vibrati0 vA50.0131 aLuck, C.1 aXu, M.1 aMarkelz, A. uhttp://meetings.aps.org/link/BAPS.2018.MAR.A50.1300552nas a2200181 4500008004100000020001400041245006300055210006300118260001000181300001400191490000800205100002700213700001700240700001800257700002200275700002400297856004900321 2017 eng d a0006-349500aImportance of Protein Vibration Directionality on Function0 aImportance of Protein Vibration Directionality on Function cFeb 3 a353A-353A0 v1121 aNiessen, Katherine, A.1 aXu, Mengyang1 aDeng, Yanting1 aSnell, Edward, H.1 aMarkelz, Andrea, G. uhttps://markelz.physics.buffalo.edu/node/25400573nas a2200169 4500008004100000020001400041245009500055210006900150300001600219490000800235100001700243700002500260700002300285700002300308700002300331856004900354 2012 eng d a1089-563900aImproved mode assignment for molecular crystals through anisotropic terahertz spectroscopy0 aImproved mode assignment for molecular crystals through anisotro a10359-103640 v1161 aSingh, Rohit1 aGeorge, Deepu, Koshy1 aBenedict, Jason, B1 aKorter, Timothy, M1 aMarkelz, Andrea, G uhttps://markelz.physics.buffalo.edu/node/20201364nas a2200253 4500008004500000020001400045245008300059210006900142260000800211300001400219490000700233520064600240653001100886653002800897653002800925653001200953653001500965653001200980100002000992700001801012700001301030700001801043856004901061 1996 Engldsh a0003-695100aInterband impact ionization by terahertz illumination of InAs heterostructures0 aInterband impact ionization by terahertz illumination of InAs he cDec a3975-39770 v693 a
Experimental studies of InAs heterostructures illuminated by far-infrared (FIR) radiation reveal an abrupt increase in the charge density for FIR intensities above a threshold value that rises with increasing frequency. We attribute this charge density rise to interband impact ionization in a regime in which omega tau(m) similar to 1, where tau(m) is the momentum relaxation time, and f=omega/2 pi is the FIR frequency. The dependence of the density rise on the FIR field strength supports this interpretation, and gives threshold fields of 3.7-8.9 kV/cm for the frequency range 0.3-0.66 THz. (C) 1996 American Institute of Physics.
10aenergy10afar-infrared excitation10ainas/alsb quantum-wells10ainplane10amodulation10aPhysics1 aMarkelz, A., G.1 aAsmar, N., G.1 aBrar, B.1 aGwinn, E., G. uhttps://markelz.physics.buffalo.edu/node/266