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本文从理论及实验上研究了向列液晶中激光导致的Freedericksz转变引起的光场频移,得出了频移的时间演化规律,发现最大频移量正比于输入光强的平方。实验结果与理论分析相一致。
In this paper, the frequency shift of the light field induced by Freedericksz transition in the nematic liquid crystal is studied theoretically and experimentally, and the time evolution of the frequency shift is obtained. The maximum frequency shift is proportional to the square of the input light intensity. The experimental results are consistent with the theoretical analysis.