photorefractive crystals的用法和樣例：
例句
- This mechanism induces optical bistability in an optical ring cavity in which a photorefractive medium is contained.
這種相移和傳輸造成含有光折變介質的光學環形腔中的雙穩態。 - This dissertation describes theoretical and experimental research on steady-state photorefractive spatial solitons.
本文主要對穩態光折變空間光孤子進行了理論和實驗研究。
