Sub-wavelength grating induced wavefront aberrations: A case study

被引：0
作者：
Crabtree, Karlton [1 ]
Chipman, Russell A. [1 ]
机构：
[1] Univ Arizona, Coll Opt Sci, 1630 East Univ Blvd, Tucson, AZ 85721 USA
来源：
INTERNATIONAL OPTICAL DESIGN CONFERENCE 2006, PTS 1 AND 2 | 2006年 / 6342卷
关键词：
diffraction gratings; thin films; sub-wavelength Gratings;
D O I：
10.1117/12.692200
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The on-axis wavefront aberrations of a one-dimensional sub-wavelength grating anti-reflection coating on a f/1.7 lens surface is dominated by defocus, astigmatism, and piston. The astigmatism is 0.02 waves and the magnitude of the piston approaches 1 wave peak-to-valley. The difference in aberrations between orthogonally polarized wavefronts, or the retardance aberration, shows 0.01 waves of astigmatism like variation and more than 0.01 waves of retardance induced defocus like variation.
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页数：7
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