A Monotonic-Increasing-Thickness Model for Designing Cylindrically Diffractive Focusing Micromirrors and Micromirror Arrays

Author

Jia-Sheng Ye ; Guo-Ai Mei ; Bi-Zhen Dong ; Yan Zhang

Author_Institution

Dept. of Phys., Capital Normal Univ., Beijing, China

Volume

31

Issue

6

fYear

2013

fDate

15-Mar-13

Firstpage

930

Lastpage

935

Abstract

In this paper, a monotonic-increasing-thickness model (MITM) is proposed for designing cylindrically diffractive focusing micromirrors (DFMs) and cylindrically diffractive focusing micromirror arrays (arrayed DFMs). Based on rigorous electromagnetic theory and the boundary element method, numerical results reveal that focal properties of the designed DFMs are significantly improved through replacing the traditional equal-thickness model (ETM) with the proposed MITM, especially in the case of small f -numbers. In addition, the superiority of the MITM to the ETM is demonstrated in designs of the arrayed DFMs. For interference effect in the arrayed DFMs, we present new explanations.

Keywords

boundary-elements methods; micromirrors; optical arrays; optical design techniques; optical focusing; DFM; ETM; MITM; boundary element method; cylindrically diffractive focusing micromirrors; equal-thickness model; micromirror arrays; monotonic-increasing-thickness model; rigorous electromagnetic theory; Diffraction; Focusing; Fresnel reflection; Lenses; Micromirrors; Boundary element method; cylindrically diffractive focusing micromirrors; diffractive focusing micromirror arrays; equal-thickness model; interference effect; monotonic-increasing-thickness model;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2013.2238887

Filename

6407620