Lichtmischung in endlichen Plasmavolumen

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Abstract
A third order scattering process of laser light in a fully ionized plasma is considered, extending previous work by KROLL, RON, and ROSTOKER 1. Two laser beams may cause the plasma to oscillate with relatively high amplitude if the difference of their frequencies approaches the electron plasma frequency. The light of either one of the beams or of a third beam may be scattered by the induced fluctuations. The plasma is described macroscopically by a cold electron fluid. Special emphasis is given to the finite dimensions of the scattering volume. The results give detailed information about the angular width and intensity of the scattered light. Marked differences in the use of a two and a three laser system are pointed out, the former giving less intensity, the later being more difficult to realize experimentally.

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