光学元件表面缺陷相对位置分布对近场光束质量的影响

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 > 高功率激光物理国家实验室

	光学元件表面缺陷相对位置分布对近场光束质量的影响
	尤科伟 ; 张艳丽 ; 张雪洁 ; 张军勇 ; 朱健强
刊名	中国激光
	2015
卷号	42 期号:3 页码:308004
其他题名	Influence of Relative Position of Optical Component Surface Defects on Near Field Beam Quality
通讯作者	You Kewei, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Zhang Yanli, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Zhang Xuejie, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Zhang Junyong, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Zhu Jianqiang, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
中文摘要	针对高功率激光装置,光学元件表面不同分布形态的多个缺陷引起的子光束,在传输过程中会相互干涉叠加,引起光束质量发生复杂变化,因此有必要对缺陷的相对位置关系加以规范。基于光的衍射传输理论,研究了光学元件表面存在不同空间分布的划痕时光场调制的变化,以及划痕深度对调制光束近场分布的影响。结果表明,元件前后表面存在平行或垂直划痕时均会比单一划痕产生更加严重的光束调制,最大调制度可增至1.5倍,且划痕具有更严格的深度要求。研究结果为光学元件图形制备标准的补充及高功率激光装置大口径光学元件表面缺陷指标的确定提供了重要参考。
英文摘要	For high-power laser facility, sub-beams caused by multiple defects of opitcal component surface with different distributions interfere with each other in the transmission process, bringing about complex changes in beam quality. So it is necessary to make a clear limitation on relative position of defects. On the basis of the diffraction transmission theory, when there are scratches with different spatial distributions on the optical element surfaces, the changes of beam modulation are studied. The influence of scratch depths on the distribution of near field beam modulation is also taken into account. Results show that when two parallel or vertical scratches are on the same or different surfaces of an element. Both of them produce more serious modulation than single scratch, and the maximum modulation degree can be increased to 1.5 times. Meanwhile more strict requirements for scratch depth are put forward. The results can provide reference for the revision of optical element standard and the determination of defects specifications for large- diameter elements in high-power laser systems.
收录类别	EI
原文出处	http://www.opticsjournal.net
语种	中文
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/14010]
专题	上海光学精密机械研究所_高功率激光物理国家实验室
作者单位	1.尤科伟, 中国科学院上海光学精密机械研究所, 上海 201800, 中国. 2.张艳丽, 中国科学院上海光学精密机械研究所, 上海 201800, 中国. 3.张雪洁, 中国科学院上海光学精密机械研究所, 上海 201800, 中国. 4.张军勇, 中国科学院上海光学精密机械研究所, 上海 201800, 中国. 5.朱健强, 中国科学院上海光学精密机械研究所, 上海 201800, 中国.
推荐引用方式 GB/T 7714	尤科伟,张艳丽,张雪洁,等. 光学元件表面缺陷相对位置分布对近场光束质量的影响[J]. 中国激光,2015,42(3):308004.
APA	尤科伟,张艳丽,张雪洁,张军勇,&朱健强.(2015).光学元件表面缺陷相对位置分布对近场光束质量的影响.中国激光,42(3),308004.
MLA	尤科伟,et al."光学元件表面缺陷相对位置分布对近场光束质量的影响".中国激光 42.3(2015):308004.