Generalized non-separable two-dimensional Dammann encoding method

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 > 信息光学与光电技术实验室

	Generalized non-separable two-dimensional Dammann encoding method
	Wu, Jun; Lu, Yancong; Zhu, Linwei; Zhou, Changhe; Yu, Junjie; Jia, Wei
刊名	Opt. Commun.
	2017
卷号	382 页码:539
通讯作者	chazhou@mail.shcnc.ac.cn
英文摘要	We generalize for the first time, to the best of our knowledge, the Dammann encoding method into non separable two-dimensional (2D) structures for designing various pure-phase Dammann encoding gratings (DEGs). For examples, three types of non-separable 2D DEGs, including non-separable binary Dammann vortex gratings, non-separable binary distorted Dammann gratings, and non-separable continuous-phase cubic gratings, are designed theoretically and demonstrated experimentally. Correspondingly, it is shown that 2D square arrays of optical vortices with topological charges proportional to the diffraction orders, focus spots shifting along both transversal and axial directions with equal spacings, and Airy-like beams with controllable orientation for each beam, are generated in symmetry or asymmetry by these three DEGs, respectively. Also, it is shown that a more complex-shaped array of modulated beams could be achieved by this non-separable 2D Dammann encoding method, which will be a big challenge for those conventional separable 2D Dammann encoding gratings. Furthermore, the diffractive efficiency of the gratings can be improved around 10% when the non-separable structure is applied, compared with their conventional separable counterparts. Such improvement in the efficiency should be of high significance for some specific applications. (C) 2016 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS记录号	WOS:000386410300085
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28496]
专题	上海光学精密机械研究所_信息光学与光电技术实验室
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	Wu, Jun,Lu, Yancong,Zhu, Linwei,et al. Generalized non-separable two-dimensional Dammann encoding method[J]. Opt. Commun.,2017,382:539.
APA	Wu, Jun,Lu, Yancong,Zhu, Linwei,Zhou, Changhe,Yu, Junjie,&Jia, Wei.(2017).Generalized non-separable two-dimensional Dammann encoding method.Opt. Commun.,382,539.
MLA	Wu, Jun,et al."Generalized non-separable two-dimensional Dammann encoding method".Opt. Commun. 382(2017):539.