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
01 Jul 1992
TL;DR: A physically-based Monte Carlo technique for approximating bidirectional reflectance distribution functions (BRDFs) for a large class of geometries by directly simulating optical scattering, which removes most restrictions on surface microgeometry.
Abstract: We describe a physically-based Monte Carlo technique for approximating bidirectional reflectance distribution functions (BRDFs) for a large class of geometries by directly simulating optical scattering. The technique is more general than previous analytical models: it removes most restrictions on surface microgeometry. Three main points are described: a new representation of the BRDF, a Monte Carlo technique to estimate the coefficients of the representation, and the means of creating a milliscale BRDF from microscale scattering events. These allowthe prediction of scattering from essentially arbitrary roughness geometries. The BRDF is concisely represented by a matrix of spherical harmonic coefficients; the matrix is directly estimated from a geometric optics simulation, enforcing exact reciprocity. The method applies to roughness scales that are large with respect to the wavelength of light and small with respect to the spatial density at which the BRDF is sampled across the surface; examples include brushed metal and textiles. The method is validated by comparing with an existing scattering model and sample images are generated with a physically-based global illumination algorithm. CR Categories and Subject Descriptors: I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism.
297 citations
TL;DR: In this article, the effect of various dielectrics on charge mobility in single-layer graphene is investigated by calculating the remote optical phonon scattering arising from the polar substrates, and combining it with their effect on Coulombic impurity scattering.
Abstract: The effect of various dielectrics on charge mobility in single-layer graphene is investigated. By calculating the remote optical phonon scattering arising from the polar substrates, and combining it with their effect on Coulombic impurity scattering, a comprehensive picture of the effect of dielectrics on charge transport in graphene emerges. It is found that though high-$\ensuremath{\kappa}$ dielectrics can strongly reduce Coulombic scattering by dielectric screening, scattering from surface phonon modes arising from them wash out this advantage. Calculation shows that within the available choice of dielectrics, there is not much room for improving carrier mobility in actual devices at room temperatures.
295 citations
TL;DR: The remarkable optical properties of metallic silver give rise not only to the brilliant colors exhibited by colloidal silver but also to a variety of other phenomena such as absorption and scattering effects, luminescence, photophoresis, and surface-enhanced Raman scattering as discussed by the authors.
295 citations
TL;DR: In this article, a new method of inversion of the Laplace transform based on its recently discovered eigenvalues and eigenfunctions is applied to the problem of inverting light scattering data from a polydisperse molecular suspension.
Abstract: A powerful new method of inversion of the Laplace transform, based on its recently discovered eigenvalues and eigenfunctions, is applied to the problem of inverting light scattering data from a polydisperse molecular suspension.
295 citations
295 citations