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采用经典电磁场理论描述非导电型各向同性手性介质,研究了圆偏振抽运光作用下线偏振信号光的非线性旋光现象.给出了非线性旋光角的解析表达式.用该公式计算的结果与实验结果一致.A nonconductive isotropic chiral medium is described by using classical electromagnetic theroy. The phenomenon of nonlinear optical activity of a linearly polarized aignal light under the action of a circularly polarized pump light is investigated. The expressions of nonlinear optical rotational angle are given. The calculated results using the expressions are in accordance to the experimental results.
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