Abstract

The Kogelnik theory of diffraction by weak volume holograms is combined with fluctuation theory and the concept of coherence areas to derive an expression for the Rayleigh ratio for normal and resonance-enhanced scattering from dilute solutions. The result is an effective Rayleigh ratio that contains an attenuation factor to account for absorbance. Since the beam diameter is less than the thickness of the hologram, the walk-off effect must be considered at larger scattering angles. The strong dependencies of the scattering efficiencies on excitation frequency and path length in the sample are discussed for Rayleigh and forced Rayleigh scattering applications, and the classical theory for a harmonically bound electron is used to derive an equation for the maximum efficiency.

© 1983 Optical Society of America

Iterative solutions for electromagnetic scattering by gratings

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