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VOLUME 22 (1975) | ISSUE 1 | PAGE 47
Parametric resonance and diagnostics of a laser plasma
Results are presented of measurements of the spectral composition of the radiation reflected (scattered) by a plasma produced when a high-power neodymium-laser beam is focused on a flat target. It is shown on the basis of a comparative analysis of the results of the experiment and of the theory of parametric resonance in a plasma that the electron temperature in the region of the critical density can be determined from the experimentally observed red shift of the intensity of the second harmonic of the laser radiation.