四电极液晶可调光楔驱动方法  

Driving Method for Adjustable Liquid Crystal Optical Wedge with Four Electrodes

作　　者：徐律涵 张亚磊 刘志强 叶茂 Xu Lühan;Zhang Yalei;Liu Zhiqiang;Ye Mao(School of Optoelectronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 611731,Sichuan,China)

机构地区：[1]电子科技大学光电科学与工程学院,四川成都611731

出　　处：《光学学报》2022年第13期150-154,共5页Acta Optica Sinica

基　　金：四川省科技计划(2021YJ0102)。

摘　　要：光楔是一种顶角很小的棱镜,常被用于控制光束的偏转角或补偿光线小角度的偏差。提出了一种四电极驱动的矩形孔液晶器件实现光楔的驱动方法。该液晶光楔的优势在于体积小、质量轻,可以通过电压控制其楔角大小、无需机械装置就可旋转光楔,有望被应用在需要控制光束偏转方向和角度的场合中,如光镊、激光雷达等。The optical wedge is a prism with a small apex angle,which is often used to control the deflection angle of the light beam or compensate for the deviation of the small angle of the light beam.A driving method for a kind of liquid crystal device driven by four electrodes with rectangular aperture to realize an optical wedge is proposed.The advantage of the liquid crystal wedge lies in its small size and light weight.The wedge angle can be controlled by voltage and the optical wedge can be rotated without a mechanical device.It is expected to be used in some fields where the deflection direction and angle of the beam need to be controlled,such as optical tweezers,lidar and so on.

关 键 词：光学器件 液晶器件 光楔 光束偏转 相位调制器 

分 类 号：TN715.2[电子电信—电路与系统]