POLARIZATION-SELECTIVE LASER MIRROR Russian patent published in 1995 - IPC

FIELD: laser equipment. SUBSTANCE: polarization-selective laser mirror is manufactured in the form of multilayer dielectric coat applied on to optical backing 1. Coat includes alternating layers 2 and 3 of two dielectrics with relatively high and low index of refraction. One of dielectric layers - layer 4 has single-side or double-side corrugation of surface with period of corrugation 5 determined depending on length of wave laser radiation and indices of refraction of layers. Indices of refraction, optical thicknesses and number of layers 2 and 3 of coat are defined by condition of obtainment of specified reflection factor. In consequence of such arrangement only one component will interfere due to presence of difference of phase hop for P and S components of reflected radiation. EFFECT: amplified polarization-selective properties of mirror. 3 dwg