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nd:yap ji guang qi de xin jin zhan
Author(s): 
Pages: 543
Year: Issue:  Z1
Journal: Chinese Journal of Lasers

Keyword:  热效应双折射率晶体点群正交晶系热焦距各向异性应力应变分布等色线温度分布弹性力学;
Abstract: <正> Nd:YAP晶体属正交晶系,空间群为D2h16-P6mm。这种晶体的热学、弹性力学、光学以及掺杂离子在这种晶体中的光谱和激光性能表现出强烈的各向异性。我们从理论上分析了正交晶系Nd:YAP晶体的热效应,得到了泵浦过程[010]Nd:YAP晶体的温度分布、应力应变分布、热致折射率、双折射率、等色线以及热焦距的解析关系式。通过测量折射率椭圆主轴的旋转角、等色线、焦点外的光强分布和热焦距,定性地证实了上述理论分析结果的正确性。
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