Three-dimensional quasi-conformal transformation optics through numerical optimization

被引：7
作者：
Junqueira, Mateus A. F. C. [1 ]
Gabrielli, Lucas H. [2 ]
Beltran-Mejia, Felipe [3 ]
Spadoti, Danilo H. [1 ]
机构：
[1] Univ Fed Itajuba, Itajuba, MG, Brazil
[2] Univ Estadual Campinas, Campinas, SP, Brazil
[3] Natl Inst Telecommun, Santa Rita Do Sapucai, MG, Brazil
来源：
OPTICS EXPRESS | 2016年 / 24卷 / 15期
基金：
巴西圣保罗研究基金会;
关键词：
BROAD-BAND; LENS; CLOAK; FREQUENCIES; DESIGN; SPACE; LIGHT;
D O I：
10.1364/OE.24.016465
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper we demonstrate the possibility to achieve 3-dimensional quasi-conformal transformation optics through parametrization and numerical optimization without using sliding boundary conditions. The proposed technique, which uses a quasi-Newton method, is validated in two cylindrical waveguide bends as design examples. Our results indicate an arbitrarily small average anisotropy can be achieved in 3D transformation optics as the number of degrees of freedom provided by the parametrization was increased. The waveguide simulations confirm modal preservation when the residual anisotropy is neglected. (C) 2016 Optical Society of America
引用
收藏
页码：16465 / 16470
页数：6
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