Laser & Optoelectronics Progress, Volume. 56, Issue 22, 222301(2019)
Phase Modulation Characteristics of LCSLM and Its Applications in Aspheric Surface Measurements
A liquid crystal spatial light modulator (LCSLM) has a wide range of applications in the non-display field. In this study, the phase modulation characteristics of LCSLM are evaluated using a Shack-Hartmann wavefront detector. The results denote that the linear phase modulation range of the low-order Zernike mode is relatively large, and the diffraction efficiency significantly decreases as the modulation range increases. Furthermore, the possibility of using LCSLM for performing aspherical surface measurements is discussed, which provides a new approach for expanding the method of aspheric surface shape detection.
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Wenchao Ma, Wen Shen, Dongting Hu, Xinyu Liu, Ziyun Zhao, Shuo Cao, Zhouping Su, Huaxin Zhu, Yixin Zhang, Guoqing Chen, Lifa Hu. Phase Modulation Characteristics of LCSLM and Its Applications in Aspheric Surface Measurements[J]. Laser & Optoelectronics Progress, 2019, 56(22): 222301
Category: Optical Devices
Received: Apr. 24, 2019
Accepted: May. 6, 2019
Published Online: Nov. 2, 2019
The Author Email: Hu Lifa (hanweimian@163.com)