Influence of Mg doping on the behaviour of polaronic light-induced absorption in LiNbO3

D. Conradi, C. Merschjann, B. Schoke, M. Imlau, G. Corradi, K. Polgár

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Transient light-induced absorption changes αli(t), caused by optically generated small polarons, are investigated in LiNbO3:Mg below and above the optical-damage-resistance threshold (ODRT). The lifetime of αli(t) is reduced by three orders of magnitude above the ODRT while a significantly enhanced amplitude αmaxli á is observed in the infrared. Our observations are in full accordance with the predictions of microscopic models for the ODRT, namely the removal of NbLi antisite defects upon incorporation of Mg ions, and an enhanced dark conductivity.

Original languageEnglish
Pages (from-to)284-286
Number of pages3
JournalPhysica Status Solidi - Rapid Research Letters
Volume2
Issue number6
DOIs
Publication statusPublished - Dec 1 2008

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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