Yb3+-doped Gd3Ga5O12 garnet single crystals grown by the micro-pulling down technique for laser application. Part 2: Concentration quenching analysis and laser optimization

Y. Guyot, H. Canibano, C. Goutaudier, A. Novoselov, A. Yoshikawa, T. Fukuda, G. Boulon

Research output: Contribution to journalConference articlepeer-review

41 Citations (Scopus)

Abstract

This article is following the first part published recently in this journal [S. Chénais, F. Druon, F. Balembois, P. Georges, A. Brenier, G. Boulon, Opt. Mater. 22 (2003) 99]. Yb3+ concentration dependence of the 2F5/2 excited level experimental decay time in GGG laser crystal was analyzed in order to understand involved concentration quenching mechanisms. Under Yb3+ ion infrared pumping, self-trapping and up-conversion non-radiative energy transfer to rare earth impurities (Er 3+, Tm3+) have been observed in visible region and interpreted by a limited diffusion process within the Yb3+ doping ion subsystem towards impurities. OH- quenching centres, Yb2+ ions and color centres may also be involved in such processes but Yb 3+ pairs do not seem efficient. Main parameters useful for the optimization of laser potentiality have also been given from a new model which has been published recently.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalOptical Materials
Volume28
Issue number1-2
DOIs
Publication statusPublished - 2006 Jan
EventPolish-French-Israeli Sypmosium on Spectroscopy of Modern Materials in Physics -
Duration: 2004 Sep 272004 Sep 30

Keywords

  • Energy levels
  • GGG garnet host
  • Laser crystals
  • Laser prediction
  • Quenching
  • Yb laser ion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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