Anomaly in a high-numerical-aperture diffractive focusing lens

被引：8

作者：

Oron, R ^{[1
]}

Guedalia, JL

Davidson, N

Friesem, AA

Hasman, E

机构：

[1] Weizmann Inst Sci, Dept Phys Complex Syst, IL-76100 Rehovot, Israel

[2] Technion Israel Inst Technol, Fac Mech Engn, Opt Engn Grp, IL-32000 Haifa, Israel

来源：

OPTICS LETTERS | 2000年 / 25卷 / 07期

关键词：

D O I：

10.1364/OL.25.000439

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show an anomalous behavior in a diffractive lens in which the spot size at the focus reaches a minimum at a numerical aperture of similar to 0.5 and then increases significantly at higher values. Theoretical and experimental results are presented, along with a comparison with refractive aplanatic lenses, in which the anomaly does not appear to exist. (C) 2000 Optical Society of America OCIS codes; 050.1970, 050.1380, 050.1960.

引用

页码：439 / 441

页数：3

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