CONVERTER OF POLARIZATION OF LASER RADIATION Russian patent published in 2001 - IPC

FIELD: laser optics, specifically, outside of resonator conversion of coherent radiation. SUBSTANCE: given converter comes in the form of reflecting diffraction element with relief period T less than length λ, of radiation wave, with width d and height h of relief ridges coupled by equation where γ - is angle of incidence of beam on element. Lines of relief in projection on cross-section of incident beam in each point of section form angle of 45 deg with radius dropped from axis of beam to this point. EFFECT: conversion of circular polarization to linear polarization with radial or azimuthal direction of vector of variation of electric radiation field. 8 dwg