In order to study adjustable-bandwidth optical filters,the variation of Bragg reflection bandwidth induced by electric field in cholesteric liquid crystal(CLC) was measured and analyzed.

• 为了研究带宽可调型光学滤波器,采用对手性液晶膜施加电压的方法,对手性液晶布喇格反射带宽随外加电场的变化规律进行了分析和测量。