Geometry projection method for optimizing photonic nanostructures

被引：34

作者：

Frei, W. R. ^{[1
]}

Tortorelli, D. A. ^{[1
]}

Johnson, H. T. ^{[1
]}

机构：

[1] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA

来源：

OPTICS LETTERS | 2007年 / 32卷 / 01期

关键词：

D O I：

10.1364/OL.32.000077

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A geometry projection method for the design of photonic nanostructures is demonstrated and compared with a topology optimization method. By using a higher-dimensional surface to delineate the material interfaces, the projection method restricts the regions of intermediate dielectric properties to a narrow user-defined band and gives some implicit control over feature size. Topology optimization addresses these issues by using a penalization to avoid areas of intermediate dielectric and a filter to obtain implicit control over feature size. The directional emission from a photonic crystal waveguide termination is improved by both methods by generating a series of irregularly shaped dielectric posts. Results are presented, and the relative merits of each method are discussed. (c) 2006 Optical Society of America

引用

页码：77 / 79

页数：3

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