Title

The effect of Cr concentration on emission cross-section and fluorescence lifetime in Cr,Yb : YAG crystal

Authors

Authors

J. Dong;P. Z. Deng

Abbreviated Journal Title

J. Lumines.

Keywords

Cr, Yb : YAG crystal; self-Q-switched; energy transfer; emission; cross-section; YB-YAG LASER; SATURABLE ABSORBER; ND-YAG; PERFORMANCE; Optics

Abstract

The emission cross-section, and fluorescence lifetime of Cr,Yb:YAG with different concentration of Cr4+ and Yb:YAG were measured. With the increase of Cr concentration in Cr,Yb:YAG, the emission cross-section keeps constant and fluorescence lifetime decreases. The quantum efficiency decreases and the energy transfer efficiency from Yb3+ to Cr4+ increase as the Cr concentration increases in Cr-Yb-co-doped Cr,Yb:YAG system. The nonradiative Yb3+ --> Cr4+ energy transfer-is consistent with an electric dipole-dipole interaction mechanism. The optimum Cr concentration for Cr,Yb:YAG was estimated. Also the potential of Cr,Yb:YAG as a self-Q-switched laser crystal was discussed. (C) 2003 Elsevier Science B.V. All rights reserved.

Journal Title

Journal of Luminescence

Volume

104

Issue/Number

1-2

Publication Date

1-1-2003

Document Type

Article

Language

English

First Page

151

Last Page

158

WOS Identifier

WOS:000182564500018

ISSN

0022-2313

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