Performance of multilevel diffractive lenses as a function of f-number

被引：23
|
作者：
Prather, DW [1 ]
Pustai, D [1 ]
Shi, SY [1 ]
机构：
[1] Univ Delaware, Dept Elect & Comp Engn, Newark, DE 19716 USA
来源：
APPLIED OPTICS | 2001年 / 40卷 / 02期
关键词：
D O I：
10.1364/AO.40.000207
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the focusing efficiency of multilevel diffractive lenses as a function of f-number. Both scalar and rigorous analyses are performed on two- and three-dimensional lenses. We show that shadowing in lenses with small f-numbers is a critical factor that limits their performance. We show further that scalar analysis does not accurately predict the effects of shadowing for lenses with long f-numbers and large numbers of phase levels. (C) 2001 Optical Society of America OCIS codes: 050.0050.
引用
收藏
页码：207 / 210
页数：4
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