Adjoint shape optimization applied to electromagnetic design

被引：495

作者：

Lalau-Keraly, Christopher M. ^{[1
]}

Bhargava, Samarth ^{[1
]}

Miller, Owen D. ^{[2
]}

Yablonovitch, Eli ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

[2] MIT, Dept Math, Cambridge, MA 02139 USA

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 18期

关键词：

COMPACT;

D O I：

10.1364/OE.21.021693

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an adjoint-based optimization for electromagnetic design. It embeds commercial Maxwell solvers within a steepest-descent inverse-design optimization algorithm. The adjoint approach calculates shape derivatives at all points in space, but requires only two "forward" simulations. Geometrical shape parameterization is by the level set method. Our adjoint design optimization is applied to a Silicon photonics Y-junction splitter that had previously been investigated by stochastic methods. Owing to the speed of calculating shape derivatives within the adjoint method, convergence is much faster, within a larger design space. This is an extremely efficient method for the design of complex electromagnetic components. (C) 2013 Optical Society of America

引用

页码：21693 / 21701

页数：9

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