Low Angle Approximations to the Theory of Alternating Electric Field Light Scattering
The intensity of light scattered from a solution of rotationally asymmetric macromolecules placed in a small alternating electric field is calculated for the limit of small scattering angles. These calculations demonstrate that the alternating double frequency component of the scattered light intensity is proportional to bOb2 where bℓ is the coefficient of the spherical harmonic Y ℓ O in an expansion of the scattering amplitude. Similarly, the intensity of the steady component of scattering is proportional to b o 2 . Using the Rayleigh-Gans-Debye approximation, the bℓ are calculated for prolate and oblate spheroids.
KeywordsApplied Electric Field Angle Approximation Prolate Spheroid Laser Light Scattering Scattered Light Intensity
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