Application of the Z-scan technique for measuring nonlinear change of the refractive index in Cr4+: YAG crystals under CW excitation

M. del Rayo, A. V. Kir'yanov, Yu. O. Barmenkov, V. N. Filippov, R. A. Peon Anaya

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Nonlinear change of the refractive index in a Cr4+:YAG crystal is measured experimentally by the Z-scan technique (CW case) at a wavelength of 1.06 mum. Theoretical analysis of the processes leading to nonlinear photorefraction in Cr4+:YAG allows one to conclude that the main physical mechanisms contributing to the change of the refractive index are the absorption saturation and thermolensing effects.

Original languageEnglish
Pages (from-to)1034-1039
Number of pages6
JournalLaser Physics
Volume13
Issue number8
Publication statusPublished - Aug 2003
Externally publishedYes
Publication typeA1 Journal article-refereed

Keywords

  • CR4+YAG SATURABLE ABSORBERS
  • VECTOR PHASE-CONJUGATION
  • PASSIVE Q-SWITCH
  • ND-YAG LASER
  • ABSORPTION
  • SATURATION
  • POLARIZATION
  • OSCILLATOR
  • MODE
  • BEAM

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