Coherent-backscatter effect - A vector formulation accounting for polarization and absorption effects and small or large scatterers

Details Coherent-backscatter effect - A vector formulation accounting for polarization and absorption effects and small or large scatterers Coherent-backscatter effect - A vector formulation accounting for polarization and absorption effects and small or large scatterers

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvb..46..801p&link_type=abstract

Physical Review B - Condensed Matter, 3rd Series (ISSN 0163-1829), vol. 46, no. 2, p. 801-812.

Physics

Condensed Matter

34

Absorption Spectra, Backscattering, Coherent Radiation, Galilean Satellites, Polarization Characteristics, Anisotropy, Autocorrelation, Circular Polarization, Linear Polarization, Radar Astronomy, Other Topics In Optical Properties, Condensed Matter Spectroscopy And Other Interactions Of Particles And Radiation With Condensed Matter, Polarization, Disordered Structures, Amorphous And Glassy Solids

Scientific paper

Previous theoretical work on the coherent-backscatter effect in the context of speckle time autocorrelation has gone beyond the diffusion approximation and the assumption of isotropic (point) scatterers. This paper extends the theory to include the effects of polarization and absorption, and to give the angular line shape. The results are expressions for angular variations valid for small and large scatterers and linear and circular polarizations, in lossless or lossy media. Calculations show that multiple anisotropic scattering results in the preservation of incident polarization. Application to a problem in radar astronomy is considered. It is shown that the unusual radar measurements (high reflectivity and polarization ratios) of Jupiter's icy Galilean satellites can be explained by coherent backscatter from anisotropic (forward) scatterers.

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