Accession Number : ADP006763

Title :   Parametric Scattering of Light in Photorefractive Linbo sub 3 Crystals,

Corporate Author : MOSCOW STATE UNIV (USSR)

Personal Author(s) : Zabrodin, K. N. ; Penin, A. N. ; Rubinina, N. M.

Report Date : 22 MAY 1992

Pagination or Media Count : 4

Abstract : A few years ago in photorefractive crystals of LiTaO3:Cu (1) and LiNbO 3:Cu (2) a new nonlinear optic phenomenon, called the parametric scattering of 'holographic type', has been observed. As in the case of well-known (3) wide-angle species of photoinduced scattering, this process was degenerate. But it occurred under condition of phase-matching for four coupling waves: 2K sub L(omega)=K sub s1(omega) + K sub s2(omega) and hence had narrow spatial spectrum, where K sub L, K sub s1, K sub s2 are the are the S2 wave vectors of the pump and two phase-conjugated scattered waves on frequency omega. The scattered radiation was polarized orthogonally in respect to the laser beam.

Descriptors :   *NONLINEAR OPTICS, *LIGHT SCATTERING, COUPLINGS, CRYSTALS, FREQUENCY, LASER BEAMS, LASERS, MATCHING, RADIATION, SCATTERING, LITHIUM TANTALATES, COPPER, REFRACTION, LITHIUM NIOBATES, REFRACTIVE INDEX, HOLOGRAPHY, COHERENT OPTICAL RADIATION, SYMPOSIA.

Subject Categories : Optics
      Holography

Distribution Statement : APPROVED FOR PUBLIC RELEASE