Accession Number : ADP006790

Title :   Phase-Locked Detection of Running Interference Pattern in Photorefractive SBN,

Corporate Author : CHELYABINSK POLYTECHNIC INST (USSR)

Personal Author(s) : Nestiorkin, O. P. ; Shershakov, Ye. P. ; Zel'Dovich, B. Ya. ; Bogodaev, N. V. ; Ivleva, L. I.

Report Date : 22 MAY 1992

Pagination or Media Count : 4

Abstract : Holographic grating in a photorefractive crystal may be recorded due to the diffusion of electrons or their drift in external or Intrinsic photovoltaic dc field as a result of illumination by a static interference pattern. Those traditional mechanisms are well studied. Running interference pattern may be registered by the phase-locked detection in the externally applied ac field. That mechanism was realized in the paraelectric crystal Bi12TiO20 (BTO). In this work we have performed the phase-locked detection mechanism in the ferroelectric photorefractive crystal SBN:Ce.

Descriptors :   *HOLOGRAPHY, *FERROELECTRIC CRYSTALS, *DIFFRACTION, CRYSTALS, DETECTION, DIFFUSION, DRIFT, ELECTRONS, EXTERNAL, ILLUMINATION, INTERFERENCE, PATTERNS, PHASE, STATICS, WORK, GRATINGS(SPECTRA), ELECTRON TRANSPORT, REFRACTION, SYMPOSIA.

Subject Categories : Optics
      Holography

Distribution Statement : APPROVED FOR PUBLIC RELEASE