Modeling focusing characteristics of low F-number diffractive optical elements with continuous relief fabricated by laser direct writing

被引：1

作者：

Shan, Mingguang ^{[1
]}

Tan, Jiubin ^{[1
]}

机构：

[1] Harbin Inst Technol, Ultraprecis Opt & Elect Instrument Engn Ctr, Harbin 150001, Peoples R China

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 25期

关键词：

D O I：

10.1364/OE.15.017032

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A theoretical model is established using Rayleigh-Sommerfeld diffraction theory to describe the diffraction focusing characteristics of low F-number diffractive optical elements with continuous relief fabricated by laser direct writing, and continuous-relief diffractive optical elements with a design wavelength of 441.6nm and a F-number of F/4 are fabricated and measured to verify the validity of the diffraction focusing model. The measurements made indicate that the spot size is 1.75 mu m and the diffraction efficiency is 70.7% at the design wavelength, which coincide well with the theoretical results: a spot size of 1.66 mu m and a diffraction efficiency of 71.2%. (C) 2007 Optical Society of America.

引用

页码：17032 / 17037

页数：6

共 29 条

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