Browsing Physics and Astronomy publications (MU) by Identifier "0094-243X"

Now showing items 1-8 of 8

  • Analysis of the center of mass-, rotational- and intramolecular diffusive motions in a monolayer film of intermediate-length alkane molecules adsorbed on a solid surface 

    Hansen, Flemming Y.; Taub, Haskell (American Institute of Physics, 2004)
    The intramolecular diffusive motions associated with the creation and annihilation of gauche defects in intermediate-length alkane molecules adsorbed on a solid surface are relatively slow and on a time scale of nanoseconds. ...

  • Determining the Dust Extinction of Gamma-ray Burst Host Galaxies: A Direct Method Based on Optical and X-ray Photometry 

    Li, Y.; Li, Aigen; Wei, D. M. (American Institute of Physics, 2008)
    We propose a straightforward method to determine the extinction of GRB host galaxies by comparing the observed optical spectra to the intrinsic ones extrapolated from the X-ray spectra. The derived extinction curves are ...

  • Functional Imaging Using InGaAs/GaAs Photorefractive Multiple Quantum Wells 

    Balasubramanian, Sunder; Iwamoto, S.; Chandrasekhar, Meera; Chandrasekhar, Holalkere R.; Kuroda, K.; Yu, Ping, Ph. D. (American Institute of Physics, 2005)
    We propose the use of an InGaAs/GaAs photorefractive quantum well (PRQW) as an adaptive beam combiner for holographic optical coherence imaging applications. Holograms have been observed by using a diode laser and an ...

  • Inertial effects of an accelerating black hole 

    Bini, D. (Donato); Cherubini, Christian; Mashhoon, Bahram (American Institute of Physics, 2005)
    We consider the static vacuum C metric that represents the gravitational field of a black hole of mass m undergoing uniform translational acceleration A such that mA 􀀀 1 􀀀3􀀀3 . The influence of the inertial acceleration ...

  • The Nature and Origin of Molecular Knots in Planetary Nebulae 

    Eyermann, S. E.; Speck, Angela K.; Meixner, Margaret; McCullough, Peter; Hora, J. (American Institute of Physics, 2005)
    Planetary Nebulae (PNe) are major contributors to the enrichment of the interstellar medium (ISM). Knots and filaments in the ionized gas images of PNe are common, if not ubiquitous. Additionally, it has been shown that ...

  • Nonlinear Intersubband Photoabsorption in Asymmetric Single Quantum Wells 

    Wijewardane, Harshani Ovamini, 1971-; Ullrich, Carsten A. (American Institute of Physics, 2005)
    A density-matrix approach combined with time-dependent density-functional theory is used to calculate the intersubband photoabsorption in a strongly driven, DC-biased GaAs/AlGaAs single quantum well. For certain frequencies ...

  • Slow Diffusive Motions in a Monolayer of Tetracosane Molecules Adsorbed on Graphite 

    Taub, Haskell; Hansen, Flemming Y.; Criswell, Leah, 1971-; Fuhrmann, D.; Herwig, K. W.; Diama, Armand, 1965-; Mo, Haiding, 1969-; Dimeo, R. M.; Neumann, Dan A.; Volkmann, Ulrich G. (American Institute of Physics, 2004)
    Monolayers of intermediate-length alkane molecules such as tetracosane (n-C24H50 or C24) serve as prototypes for studying the interfacial dynamics of more complex polymers, including bilayer lipid membranes. Using ...

  • Towards a High Diffraction Efficiency of Photorefractive Multiple Quantum Wells 

    Ward, T. Z.; Yu, Ping, Ph. D.; Balasubramanian, Sunder; Chandrasekhar, Meera; Chandrasekhar, Holalkere R. (American Institute of Physics, 2005)
    We propose a method to improve the diffraction efficiency of photorefractive multiple quantum well devices in the transverse-field geometry. Higher efficiencies have been achieved through systematic electrical modulation studies.