Center off-axis tandem microlens arrays for beam homogenization

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 微电子装备总体研究室（四室）

	Center off-axis tandem microlens arrays for beam homogenization
	Cao, Axiu; Pang, Hui; Wang, Jiazhou; Zhang, Man; Shi, Lifang; Deng, Qiling
刊名	IEEE Photonics Journal
	2015
卷号	7 期号:3 页码:2400207
ISSN号	1943-0655
通讯作者	Shi, Lifang
中文摘要	Tandem microlens arrays are commonly used in many applications for the beam shaping of an arbitrary input intensity distribution into a top hat. Because of the periodic structure of the regular arrays, the output intensity distribution is modulated by equidistantly located sharp intensity peaks, which reduces the homogeneity of the beam. A new concept is proposed in this paper for tandem microlens arrays incorporating a center off-axis microlens array for the generation of an intensity far-field distribution with improved homogeneity under coherent illumination with the envelope of a top hat. The geometric centers of the sub-apertures are randomly offset by the light axis of the sub-lens in the array to break the periodicity. The influences of the various off-axis amounts on the homogeneity are discussed. The center off-axis microlens array has been fabricated, and the corresponding laser beam homogenizing experiment has been carried out. The results verify that a high homogeneity output intensity distribution can be achieved based on the presented method. © 2015 IEEE.
英文摘要	Tandem microlens arrays are commonly used in many applications for the beam shaping of an arbitrary input intensity distribution into a top hat. Because of the periodic structure of the regular arrays, the output intensity distribution is modulated by equidistantly located sharp intensity peaks, which reduces the homogeneity of the beam. A new concept is proposed in this paper for tandem microlens arrays incorporating a center off-axis microlens array for the generation of an intensity far-field distribution with improved homogeneity under coherent illumination with the envelope of a top hat. The geometric centers of the sub-apertures are randomly offset by the light axis of the sub-lens in the array to break the periodicity. The influences of the various off-axis amounts on the homogeneity are discussed. The center off-axis microlens array has been fabricated, and the corresponding laser beam homogenizing experiment has been carried out. The results verify that a high homogeneity output intensity distribution can be achieved based on the presented method. © 2015 IEEE.
学科主题	Homogenization method - Laser beams - Microoptics - Optical instrument lenses
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000360358300012
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/7336]
专题	光电技术研究所_微电子装备总体研究室（四室）
作者单位	Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
推荐引用方式 GB/T 7714	Cao, Axiu,Pang, Hui,Wang, Jiazhou,et al. Center off-axis tandem microlens arrays for beam homogenization[J]. IEEE Photonics Journal,2015,7(3):2400207.
APA	Cao, Axiu,Pang, Hui,Wang, Jiazhou,Zhang, Man,Shi, Lifang,&Deng, Qiling.(2015).Center off-axis tandem microlens arrays for beam homogenization.IEEE Photonics Journal,7(3),2400207.
MLA	Cao, Axiu,et al."Center off-axis tandem microlens arrays for beam homogenization".IEEE Photonics Journal 7.3(2015):2400207.