Error analysis of standard wave-front reconstruction based on spatial light modulator

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 中科院强激光材料重点实验室

	Error analysis of standard wave-front reconstruction based on spatial light modulator
	Zhang Zhigang; MaXiao; Liu Shijie; Shao Jianda
	2016
通讯作者	shijieliu@siom.ac.cn
英文摘要	The invention of spatial light modulator (SLM) promotes the development of aspheric surface test. SLM has the advantage of real-time and low-cost in comparison with the etching computer-generated hologram(CGH) plate. The pixel-structure of SLM, which includes the pixel pitch, gray-level number and black matrix, has great significance on the reconstructed wave-front quality. In this paper, the effects of SLM pixel pitch, gray-level number and black matrix are analyzed by Fresnel diffraction theory and computer simulation. In the simulation, a concave spherical wave-front with a radius of 1000 mm is generated by the SLM with different pixel pitch, gray-level numbers and aperture ratios, respectively. The results show that the quality of the reconstructed wave-front gets poorer as the pixel pitch increases, the gray-level number decreases or the aperture ratio reduces. This work can guide the selection of the SLM in the aspheric surface test.
会议录	OPTICAL MEASUREMENT TECHNOLOGY AND INSTRUMENTATION
语种	英语
ISSN号	0277-786X
内容类型	会议论文
源URL	[http://ir.siom.ac.cn/handle/181231/27404]
专题	上海光学精密机械研究所_中科院强激光材料重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Zhang Zhigang,MaXiao,Liu Shijie,et al. Error analysis of standard wave-front reconstruction based on spatial light modulator[C]. 见:.