Diffractive phase elements that synthesize color pseudo-nondiffracting beams

被引：7
|
作者：
Liu, R [1 ]
Gu, BY [1 ]
Dong, BZ [1 ]
Yang, GZ [1 ]
机构：
[1] Acad Sinica, Inst Phys, Beijing 100080, Peoples R China
来源：
OPTICS LETTERS | 1998年 / 23卷 / 08期
关键词：
D O I：
10.1364/OL.23.000633
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The design of diffractive phase elements (DPE's) for generating color pseudo-nondiffracting beams (PNDB's) in a multiple-wave illuminating system by the conjugate-gradient method is described. The axial-intensity distributions for dual-color PNDB's generated by the DPE's are shown. The color PNDB's behave as segmented axial-intensity distributions; in each of segments only one color persists. The sequence of wavelength components in the color PNDB's can be arbitrarily preset. Three-dimensional plots of a dual-color PNDB indicate the characteristics of a beam with high transverse resolution. (C) 1998 Optical Society of America.
引用
收藏
页码：633 / 635
页数：3
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