Acousto-Optic Beam Sampler, Part 2. Green's Function Solution to Acousto-Optic Interaction Problem.
BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD
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This part of the Acousto-Optic Beam Sampler, series lays down the formalism behind the Greens function integral approach to solving the acousto-optic scattering problem. The advantage of this formulation which is applicable to gases is shown through developing the solution to the scattering problem for several complicated cases using this Greens function method. These results agree with those obtained by more involved means. In particular, the power of the method is shown in solving the problem for a lossy acoustic interferometer used as the acoustic grating. Also since the Greens function method directly gives only the far field scattering fraction, a reasonable method is outlined for obtaining a form for the near field from the far field form.