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Optical Engineering

Refractive-diffractive hybrid optical element for true beam smoothing
Author(s): Qiaofeng Tan; Yingbai Yan; Guofan Jin
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Paper Abstract

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 π, which is correspondingly easy to fabricate.

Paper Details

Date Published: 1 November 2003
PDF: 6 pages
Opt. Eng. 42(11) doi: 10.1117/1.1617309
Published in: Optical Engineering Volume 42, Issue 11
Show Author Affiliations
Qiaofeng Tan, Tsinghua Univ. (China)
Yingbai Yan, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)


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