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Title: Self-diffraction of light waves by a local photorefractive grating in a crystal of the symmetry group bar 4-bar 3m in the transverse configuration

Abstract

The exact solution of nonlinear equations describing the symmetric stationary interaction of two light waves of an arbitrary polarisation on a local photorefractive grating in a crystal of the symmetry group 4-bar 3m in the transverse configuration of crystal faces is obtained in the paraxial limit. The polarisation of light waves and efficiency of energy transfer between them are studied as functions of the reduced length of a sample and the intensity ratio of incident waves. (nonlinear optical phenomena)

Authors:
 [1]
  1. Tomsk State University of Control Systems and Radioelectronics, Tomsk (Russian Federation)
Publication Date:
OSTI Identifier:
21466620
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 37; Journal Issue: 2; Other Information: DOI: 10.1070/QE2007v037n02ABEH013349
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONFIGURATION; CRYSTALS; DIFFRACTION; EFFICIENCY; ENERGY TRANSFER; EXACT SOLUTIONS; GRATINGS; NONLINEAR PROBLEMS; POLARIZATION; SURFACES; SYMMETRY; SYMMETRY GROUPS; VISIBLE RADIATION; COHERENT SCATTERING; ELECTROMAGNETIC RADIATION; MATHEMATICAL SOLUTIONS; RADIATIONS; SCATTERING

Citation Formats

Litvinov, Rudol'f V. Self-diffraction of light waves by a local photorefractive grating in a crystal of the symmetry group bar 4-bar 3m in the transverse configuration. United States: N. p., 2007. Web. doi:10.1070/QE2007V037N02ABEH013349.
Litvinov, Rudol'f V. Self-diffraction of light waves by a local photorefractive grating in a crystal of the symmetry group bar 4-bar 3m in the transverse configuration. United States. doi:10.1070/QE2007V037N02ABEH013349.
Litvinov, Rudol'f V. Wed . "Self-diffraction of light waves by a local photorefractive grating in a crystal of the symmetry group bar 4-bar 3m in the transverse configuration". United States. doi:10.1070/QE2007V037N02ABEH013349.
@article{osti_21466620,
title = {Self-diffraction of light waves by a local photorefractive grating in a crystal of the symmetry group bar 4-bar 3m in the transverse configuration},
author = {Litvinov, Rudol'f V},
abstractNote = {The exact solution of nonlinear equations describing the symmetric stationary interaction of two light waves of an arbitrary polarisation on a local photorefractive grating in a crystal of the symmetry group 4-bar 3m in the transverse configuration of crystal faces is obtained in the paraxial limit. The polarisation of light waves and efficiency of energy transfer between them are studied as functions of the reduced length of a sample and the intensity ratio of incident waves. (nonlinear optical phenomena)},
doi = {10.1070/QE2007V037N02ABEH013349},
journal = {Quantum Electronics (Woodbury, N.Y.)},
number = 2,
volume = 37,
place = {United States},
year = {Wed Feb 28 00:00:00 EST 2007},
month = {Wed Feb 28 00:00:00 EST 2007}
}
  • The mutual transformation of light waves in the case of their simultaneous diffraction from a bulk reflection phase hologram, which was formed in a cubic photorefractive crystal of the 4-bar 3m symmetry class, has been studied. The indicator surfaces of the polarization-optimized values of the relative intensity of the object wave, which make it possible to determine the amplification of this wave for any crystal cut, are constructed. The linear polarization azimuths at which the energy exchange between the light waves reaches a maximum are found numerically for crystals of different cuts.
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  • Single crystals of four homologues in the series n Ba(Nb,Zr)O{sub 3}+3m NbO, with n: m=2:1, 3:1, 4:1, and 5:1, were found in the reduced Ba-Nb-Zr-O system. Single-crystal X-ray diffraction data were collected for all the crystals. For all homologues the space group was found to be P4/mmm. The structures can be described as intergrowths of Ba(Nb,Zr)O{sub 3} perovskite and NbO slabs. The refined cell parameters and compositions of the 2:1, 3:1, and 4:1 homologues are a=4.1768(5) {angstrom} and c=12.269(2) {angstrom} for Ba{sub 2}Nb{sub 4.5(1)}Zr{sub 0.5(1)}O{sub 9}, a=4.1769(5) {angstrom} and c=16.493(3) {angstrom} for Ba{sub 3+{delta}}Nb{sub 4.8(2)-{delta}}Zr{sub 1.2(2) }O{sub 12-{delta}} ({delta}=0.098(4)), andmore » a=4.1747(6) {angstrom} and c= 20.619(4) {angstrom} for Ba{sub 4+{delta}}Nb{sub 5.1(4)-{delta}}Zr{sub 1.9(4) }O{sub 15-{delta}} ({delta}=0.270(9)). The refined cell parameters of the 5:1 homologue are a=4.1727(3) {angstrom} and c=24.804(3) {angstrom}. Zr replaces Nb only in the NbO {sub 6} octahedra found in the perovskite slabs.« less