... photorefractive coupler 光折射耦合器 photorefractive crystal 光折射晶体 photorefractive keratectomy 准分子激光角膜切削术 ; 角膜切除术 ...
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运用折射率椭球分析晶体的弹光效应，给出了三方晶系沿光轴方向的应力与折射率的变化关系。
The relation between the stress along the optical axis of trigonal crystallographic system and the refractive index is established.
测试了晶体的光折变阈值、双折射梯度和消光比。
The optical refraction threshold. birefringent gradient and extinction ratio were measured.
经过分析，该装置不仅能完成偏振光的干涉实验，而且可以测定晶体的折射率或折射率分布情况。
These devices can not only accomplish polarized light interference experiment, but also measure the refractivity or refractive index profile of crystal.
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