optical Stark effect

例句：

1. 1. The camera has an optical zoom lens.
   这台相机有一个光学变焦镜头。
2. 2. The scientist used the optical microscope to examine the sample.
   科学家使用光学显微镜来检查样本。
3. 3.The optical properties of the material have been studied extensively.
   这种材料的光学性质已经被广泛研究。