nonlinear optics

例句：

1. 1.Nonlinear optics is a field of study that focuses on the behavior of light in materials with discontinuous or non-uniform refractive index.
   非线性光学是研究光在具有不连续或非均匀折射指数的材料中行为的学科。
2. 2. In nonlinear optics, the interaction between light and matter can lead to phenomena such asself-focusing and self-defocusing.
   在非线性光学中，光与物质的相互作用可以导致自聚焦和自散焦等现象。
3. 3.The nonlinear optical properties of materials are crucial for applications in areas such as laser technology and data storage.
   材料的非线性光学特性对于激光技术和数据存储等领域的应用至关重要。