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介绍了一种利用介质折射率的负变化量制作光开关的基本原理及时间响应特性。从其工作原理出发,分析了其内折射率变化的主要机制;通过详细的理论分析,得出折射率变化的表达式;并以此为基础深入讨论了影响其开关性能及时间响应特性的因素,所得结果与已有的实验报道相吻合。
A basic principle and time response characteristic of optical switch using negative change of medium refractive index is introduced. Based on its working principle, the main mechanism of the change of refractive index is analyzed. Through the detailed theoretical analysis, the expression of refractive index change is obtained. Based on this, the factors affecting the switching performance and the time response are discussed in depth The obtained results are consistent with the existing experimental reports.