Common-path interferometer with diffractive lens

被引:10
|
作者
Elfström, H [1 ]
Lehmuskero, A [1 ]
Saastamoinen, T [1 ]
Kuittinen, M [1 ]
Vahimaa, P [1 ]
机构
[1] Univ Joensuu, Dept Phys, FI-80101 Joensuu, Finland
来源
OPTICS EXPRESS | 2006年 / 14卷 / 09期
关键词
D O I
10.1364/OE.14.003847
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We introduce a novel common-path interferometric measurement setup for optical quality testing. The setup is based on an optimized diffractive lens which produces two diffraction orders with equal efficiency and thus forms two interfering beams without any beam splitting or mirror alignments. The fabrication steps of the diffractive element are presented and the testing of the setup with injection molded millimeter scale lenses is briefly discussed. (c) 2006 Optical Society of America.
引用
收藏
页码:3847 / 3852
页数:6
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