Mechanisms of slow bleaching in YAG:Cr4+ under cw pumping

Irina T. Sorokina; S. Naumov; E. Sorokin; A. G. Okhrimchuk

doi:10.1117/12.420950

23 March 2001 Mechanisms of slow bleaching in YAG:Cr⁴⁺under cw pumping

Irina T. Sorokina, S. Naumov, E. Sorokin, A. G. Okhrimchuk

Proceedings Volume 4350, Laser Optics 2000: Solid State Lasers; (2001) https://doi.org/10.1117/12.420950
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

We report on the results of lasing and spectroscopic investigations of the anomalously slow recoverable bleaching of Cr,Ca:YAG and Cr,Mg:YAG crystals. We propose two models for this effect: (i) Cr⁴⁺ reduction to Cr³⁺ due to oxygen valence band electron capture by Cr⁴⁺, and (ii) induced disorder in Cr⁴⁺ tetrahedral center due to effect of oxygen vacancies.

Citation Download Citation

Irina T. Sorokina, S. Naumov, E. Sorokin, and A. G. Okhrimchuk "Mechanisms of slow bleaching in YAG:Cr⁴⁺under cw pumping", Proc. SPIE 4350, Laser Optics 2000: Solid State Lasers, (23 March 2001); https://doi.org/10.1117/12.420950

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