METHOD FOR MEASURING STATISTIC CHARACTERISTICS OF DENSITY FLUCTUATION FIELD AND DEVICE FOR ITS REALIZATION

摘要

Usage: This invention relates to nonlinear optics and issues relates to provide methods for the study of optically inhomogeneous media and devices that use the phenomenon of phase conjugation, and may be used in the study of turbulent gas streams and the characteristics of the plasma. The inventive radiation is used, the intensity of which exceeds a threshold value necessary for realizing the effect of the wavefront reversal (WFR) elapsed investigated inhomogeneous medium, the radiation returned in the reverse direction in the form of a beam with a reversed wavefront. Wherein radiation from an inhomogeneous medium to a phase conjugation mirror and back takes place over two optical lines consisting of a system of mirrors and beam splitters, in one of which there is a revolution of 180 degrees image, or mirror, or in its own plane, registration radiation intensity distribution proportional value of the unknown function, prefiltered through a shadow device, manufactured by a two-dimensional photorecording device in real time, 1 yl. (L