Photoinduced Charge Transport in Optical Damage Resistant LiNbO sub 3:Me (Me = Mg, Zn),

Abstract

Photoinduced charge transport in lithium niobates is defined by presence of a iron-like impurity, Fe(2+) being the donor, Fe(3+) - the acceptor of electrons. Two level scheme gives the linear dependence of photoconductivity (that is of inverse response times of photorefraction) on the light intensity. We discuss the influence of Me impurities (Me = Mg,Zn). provided for optical damage resistance in LiNbO3, on photoelectric phenomena. Me impurity affects photoconductivity of LiNbO3 rather than photovoltaic properties. Investigations of charge transport phenomena in LiNbO3 :Me reveal some threshold Me concentrations (5.5 mol.%Mg(3) or 7.7mol.%Zn(4)) which coincide with those in optical measurements.

Document Details

Document Type
Technical Report
Publication Date
May 22, 1992
Accession Number
ADP006765

Entities

People

  • F. Ya. Shchapov
  • M. A. Ivanov
  • N. M. Rubinina
  • T. R. Volk

Organizations

  • Moscow State University

Tags

DTIC Thesaurus Topics

  • Electrons
  • Impurities
  • Intensity
  • Lithium
  • Lithium Niobates
  • Massachusetts
  • Materials
  • Measurement
  • Niobates
  • Photoconductivity
  • Photorefractive Materials
  • Piezoceramics
  • Resistance
  • Transport Ships

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Microelectronics