Browsing by Author "Kattawar, George W."
Now showing items 1-20 of 36
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Fry, Edward S.; Kattawar, George W.; Gray, Deric J.; Zhao, Xianzhen; Lu, Zheng (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2006-06-06)An apparatus for measuring an absorption coefficient includes a first diffusive material, a second diffusive material inside the first diffusive material separated from the first diffusive material by a cavity, and a ...
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Tang, Guanglin (2012-07-16)A Discontinuous Galerkin Time Domain method (DGTD), using a fourth order Runge-Kutta time-stepping of Maxwell's equations, was applied to the simulation of the optical properties of dielectric particles in two-dimensional ...
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You, Yu (2010-01-16)The first part of this study is focused on numerical studies of light scattering from a single microscopic particle using the Discrete Dipole Approximation (DDA) method. The conventional DDA formalism is generalized to ...
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Zhang, Zhibo (Texas A&M University, 2004-11-15)This thesis is made up of three parts on the computation of scattering properties of nonspherical particles in the atmosphere. In the first part, a new crystal type-droxtal-is introduced to make a better representation of ...
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Wagers, Andrew James (2012-10-19)Type Ia supernovae (SNe Ia) are currently the best probe of the expansion history of the universe. Their usefulness is due chiefly to their uniformity between supernovae (SNe). However, there are some slight variations ...
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Zhai, Pengwang (2009-06-02)When the finite-difference time-domain (FDTD) method is applied to light scattering computations, the far fields can be obtained by either a volume integration method, or a surface integration method. In the first study, ...
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Fry, Edward S.; Musser, Joseph A.; Katz, Jeffrey; Merka, William C.; Kattawar, George W.; Lu, Zheng (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2011-01-11)The invention relates an apparatus and method for forming a diffuse reflector. In one embodiment of the invention, a diffuse reflector is formed by exposing transmissive particles of a pre-determined purity to pressure and ...
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Scully, Marlan O.; Kattawar, George W.; Lucht, Robert P.; Opatrny, Tomas; Pilloff, Herschel S.; Sokolov, Alexei V.; Zubairy, Suhail M. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2004-09-21)According to one embodiment of the present invention, identifying a molecule of a sample includes illuminating the sample with a preparation light beam, where the preparation light beam can initiate a substantially maximized ...
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Haubrich, David (2011-10-21)The backscattering coefficient bb is one of the inherent optical properties of natural waters which means that it is independent of the ambient light field in the water. As such, it plays a central role in many problems ...
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Benson, Robert Henry (Texas A&M University. Libraries, 1985)An investigation of scintillations in ground-level cosmic ray muons has been conducted using a muon telescope constructed at Texas A&M University. The power density spectrum of the muon counting rate was calculated and the ...
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Ryjkov, Vladimir Leonidovich (Texas A&M University, 2005-02-17)An investigation of the sympathetic cooling method for the studies of large ultra-cold molecular ions in a quadrupole ion trap has been conducted.Molecular dynamics simulations are performed to study the rf heating ...
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Bi, Lei (2012-07-16)Modeling the single-scattering properties of nonspherical particles in the atmo¬sphere (in particular, ice crystals and dust aerosols) has important applications to climate and remote sensing studies. The first part of the ...
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Meng, Zhaokai (2011-02-22)The light scattering problem and its application in atmospheric science is studied in this thesis. In the first part of this thesis, light scattering theory of single irregular particles is investigated. We first introduce ...
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Voss, Kenneth Joh (Texas A&M University. Libraries, 1984)The sixteen element light scattering polarization matrix has been measured for ocean water, and phytoplankton cultures, using an electro-optic light scattering polarimeter. This instrument was an order of magnitude more ...
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Qu, Xinmei (2009-05-15)The dissociation of a 199Hg2 dimer prepares an entangled state of two spatially separated 199Hg atoms, each with nuclear spin 1/2, and with zero total electron and nuclear spin angular momenta. This is identical to the ...
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Lee, Joonsuk (2009-06-02)The tropics is a very important region in terms of earth’s radiation budget because the net radiative heating is largest in the tropics and that surplus energy is redistributed by the circulations of oceans and atmospheres. ...
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Chen, Guang (2009-05-15)The single scattering properties of atmospheric particles are fundamental to radiative simulations and remote sensing applications. In this study, an efficient technique, namely, the pseudo-spectral time-domain (PSTD) ...
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Burciaga, John Raymond (Texas A&M University. Libraries, 1986)The C1Пu state of H2 has a small hump in its potential due to the combination of an intermediate molecular attractive force and a long range repulsive van der Waal's force. This hump is large enough to allow the formation ...
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Echeverria, Francesco Jozac (2015-05-12)Recent changes in the maximum permissible exposure (MPE) limits for near-infrared (NIR) laser exposures are analyzed in light of nonlinear optical phenomena. We have evaluated the thresholds for supercontinuum (SC) generation ...
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Observation of precursorlike behavior of femtosecond pulses in a dye with a strong absorption band Springer, Matthew M.; Yang, Wenlong; Kolomenski, Alexandre A.; Schuessler, Hans A.; Strohaber, James; Kattawar, George W.; Sokolov, Alexei V. (American Physical Society, 2011)Recent interest in Sommerfeld-Brillouin optical precursors has brought attention to the possibility of optical precursor observation in bulk matter. We investigate the possible formation of optical precursors in an organic ...