介绍实现光子开关材料BR分子的重要性。理论上分析BR分子材料光学特性，实验观测BR分子材料在400nm和632nm光照射下的相互抑制作用,最后分析BR的光子开关特性。%The importance of BR which is used in achieving photonic switches is summarized simply.The principle and ways how to realized photonic switches based on BR are analyzed in detail.Under illuminatiing by two beams at 568nm and 412nm,the transmission of two beams is moduleted by BR in a complementary fashion.Then,this paper shows the experiments of photonic switches.The datas from experiments are analyzed finally.
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