Refractive-diffractive hybrid optical element for true beam smoothing

被引：0

作者：

Tan, QF ^{[1
]}

Yan, YB ^{[1
]}

Jin, GF ^{[1
]}

机构：

[1] Tsing Hua Univ, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China

来源：

OPTICAL ENGINEERING | 2003年 / 42卷 / 11期

关键词：

refractive-diffractive hybrid optical elements; true beam smoothing; precise design;

D O I：

10.1117/1.1617309

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A refractive-diffractive hybrid optical element for true beam smoothing is designed with the precise design method. The intensity of any point on the focal plane is fully filled with the required demand, besides the sampling points used in the optimization. An aspheric refractive surface gives a good initial intensity distribution on the focal plane and can decrease the phase depth of the diffractive surface. After the optimization, the phase depth of the diffractive surface is smaller than 1.1 pi, which is correspondingly easy to fabricate. (C) 2003 Society of Photo-Optical Instrumentation Engineers.

引用

页码：3100 / 3105

页数：6

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