Topic
Light scattering
About: Light scattering is a research topic. Over the lifetime, 37721 publications have been published within this topic receiving 861581 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: The scattering of light by a single subwavelength slit in a metal screen is studied by emphasizing the generation of surface plasmons at the slit apertures and is shown to be fairly efficient for metals with a low conductivity, such as gold in the visible regime.
Abstract: In this Letter, we study the scattering of light by a single subwavelength slit in a metal screen In contrast with previous theoretical works, we provide a microscopic description of the scattering process by emphasizing the generation of surface plasmons at the slit apertures The analysis is supported by a rigorous formalism based on a normal-mode-decomposition technique and by a semianalytical model that provides accurate formulas for the plasmonic generation strengths The generation is shown to be fairly efficient for metals with a low conductivity, such as gold in the visible regime Verification of the theory is also shown by comparison with recent experimental data [H F Schouten, Phys Rev Lett 94, 053901 (2005)]
330 citations
TL;DR: In this paper, a framework for interpreting experiments on Doppler shifts in light scattering from pure liquids and polymer solutions is presented, where the spectral density of the light scattered into a given frequency range and angle by a liquid composed of identical, isotropic particles much smaller than the wavelength of the incident light is expressed in terms of the Fourier transform of the two-body space.
Abstract: A framework for interpreting experiments on Doppler shifts in light scattering from pure liquids and polymer solutions is presented. The spectral density of the light scattered into a given frequency range and angle by a liquid composed of identical, isotropic particles much smaller than the wavelength of the incident light is expressed in terms of the Fourier transform of the two‐body space—time correlation function. The formalism is then applied to the problem of light scattering from dilute polymer solutions. The Doppler shifts are evaluated for a polymer molecule undergoing translational Brownian motion, and for a rigid rod‐shaped molecule undergoing Brownian motion about its center of mass. It is concluded that for a pure liquid more accurate experiments are needed to determine the form of the long‐range part of the space—time correlation function. For polymer solutions, for which Doppler shift measurements have never been done, Doppler shift measurements should yield information about the shape of t...
329 citations
TL;DR: In this paper, a simple analytical formula that can quantitatively predict resonant light scattering from metal nanoparticles of arbitrary shape, whose sizes are too large for Rayleigh approximation to be applicable.
Abstract: We propose a simple analytical formula that can quantitatively predict resonant light scattering from metal nanoparticles of arbitrary shape, whose sizes are too large for Rayleigh approximation to be applicable. The formula has been derived as an empirical extension of Mie’s rigorous calculation for light scattering from spheres. It can very well reproduce the experimental characteristics of light scattering from Au nanorods.
328 citations
TL;DR: The angular scattering behavior of spheroids is found to be greatly different from that of spheres for side scattering to backscattering directions and the linear polarization and depolarization are discussed in application to scattering in the earth and planetary atmospheres.
Abstract: Light scattering properties of an assembly of randomly oriented, identical spheroidal particles are studied. A computation scheme has been developed to integrate the solution of Asano and Yamamoto for scattering from a homogeneous spheroid over all the particle orientations. The extinction and scattering cross sections, asymmetry factor, and scattering matrix elements are calculated for randomly oriented prolate and oblate spheroids and compared with both calculations for spheres and laboratory measurements, The scattering cross section, single scattering albedo, and asymmetry factor of spheroids tend to be larger than those for spheres of the same volume. The normalized scattering matrix has a symmetrical form with six independent elements. The angular scattering behavior of spheroids is found to be greatly different from that of spheres for side scattering to backscattering directions. In general, prolate and oblate spheroids of the same shape parameter have similar angular scattering patterns. The angular distribution of scattered intensity is characterized by strong forward scattering and weak backscattering. The linear polarization tends to be positive at intermediate scattering angles. The linear polarization and depolarization are discussed in application to scattering in the earth and planetary atmospheres.
324 citations