激光与光电子学进展, 2015, 52 (10): 100701, 网络出版: 2015-10-08
基于Gerchberg-Saxton相位恢复算法改进的涡旋光束生成 下载: 970次
Improved Vortex Beams Generated Based on Gerchberg-Saxton Phase Retrieval Algorithm
傅里叶光学 螺旋相位 像差补偿 Gerchberg-Saxton 算法 反射式液晶空间光调制器 Fourier optics spiral phase aberration compensation Gerchberg-Saxton algorithm reflective liquid crystal spatial light modulator
摘要
随着液晶空间光调制器的广泛应用,利用液晶空间光调制器生成涡旋光束的方法越来越实用。由于反射式液晶空间光调制器制作工艺的缺陷,使得生成出来的涡旋光束质量并不是十分完美的。就反射式液晶空间光调制器这一缺陷提出了一种基于Gerchberg -Saxton(GS)相位恢复算法的像差补偿方法,通过像差补偿使得反射式液晶空间光调制器生成出来的涡旋光束质量(对称性)得到提高,进而从理论上说明了反射式液晶空间光调制器生成各种完美环形光的方法。
Abstract
With the extensive application of liquid crystal spatial light modulator, using liquid crystal spatial light modulator to generate vortex beams become more and more practical. Due to defects in the production process of reflective liquid crystal spatial light modulator, the quaility of the vortex beams generated by the reflective liquid crystal spatial light modulator is not perfect. An aberration compensation method based on Gerchberg-Saxton (GS) phase retrieval algorithm is put forward to overcome this shortcoming, after this aberration compensation, the quality (symmetry) of the vortex beams is improved. Furthermore, the method for the reflective liquid crystal spatial light modulator to generate all kinds of perfect vortex beams is explained in theory.
王由平, 郑明杰, 陈大强. 基于Gerchberg-Saxton相位恢复算法改进的涡旋光束生成[J]. 激光与光电子学进展, 2015, 52(10): 100701. Wang Youping, Zheng Mingjie, Chen Daqiang. Improved Vortex Beams Generated Based on Gerchberg-Saxton Phase Retrieval Algorithm[J]. Laser & Optoelectronics Progress, 2015, 52(10): 100701.