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

    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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