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LD抽运Nd:YVO4晶体中的上转换及其影响

物理学报, 2001, 50(2): 335-340.
DOI: 10.7498/aps.50.335
CSTR: 32037.14.aps.50.335

UPCONVERSION IN Nd:YVO4 CRYSTAL UNDER LD PUMP AND ITS INFLUENCE

Acta Phys. Sin., 2001, 50(2): 335-340.
DOI: 10.7498/aps.50.335
CSTR: 32037.14.aps.50.335
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  • 摘要

    对激光二极管抽运下Nd:YVO4晶体中的上转换发光做了测量与分析,发现对应4G7/2能级向下跃迁的上转换发光的主导机制为能量传递上转换.接着,对上转换对LD抽运Nd:YVO4激光器运转的影响进行了理论分析,并特别讨论了上转换对热效应的影响.

     

    Abstract

    Upconversion fluorescence in Nd:YVO4 crystal under a laser diode (LD) pump was investigated. It is proved that the predominant mechanism for excitation of 4G7/2 level is an energy transfer upconversion. Then,a theoretical approach to upconversion effect on LD pumped Nd:YVO4 laser is given.In addition,the role of upconversion in thermal effect is discussed in detail.

     

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