Optimization of loss and gain multilayers for reducing the scattering of a perfect conducting cylinder

doi:10.1088/1674-1056/25/7/074101

中国物理B ›› 2016, Vol. 25 ›› Issue (7): 74101-074101.doi: 10.1088/1674-1056/25/7/074101

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Optimization of loss and gain multilayers for reducing the scattering of a perfect conducting cylinder

Zhen-Zhong Yu(余振中), Guo-Shu Zhao(赵国树), Gang Sun(孙罡), Hai-Fei Si(司海飞), Zhong Yang(杨忠)

School of Intelligence Science and Control Engineering, Jinling Institute of Technology, Nanjing 211169, China

收稿日期:2015-09-30 修回日期:2016-02-01 出版日期:2016-07-05 发布日期:2016-07-05
通讯作者: Zhen-Zhong Yu E-mail:nanfish@jit.edu.cn
基金资助:
Project supported by the Research Foundation of Jinling Institute of Technology, China (Grant No. JIT-B-201426), the Jiangsu Modern Education and Technology Key Project, China (Grant No. 2014-R-31984), the Jiangsu 333 Project Funded Research Project, China (Grant No. BRA2010004), and the University Science Research Project of Jiangsu Province, China (Grant No. 15KJB520010).

Optimization of loss and gain multilayers for reducing the scattering of a perfect conducting cylinder

Zhen-Zhong Yu(余振中), Guo-Shu Zhao(赵国树), Gang Sun(孙罡), Hai-Fei Si(司海飞), Zhong Yang(杨忠)

School of Intelligence Science and Control Engineering, Jinling Institute of Technology, Nanjing 211169, China

Received:2015-09-30 Revised:2016-02-01 Online:2016-07-05 Published:2016-07-05
Contact: Zhen-Zhong Yu E-mail:nanfish@jit.edu.cn
Supported by:
Project supported by the Research Foundation of Jinling Institute of Technology, China (Grant No. JIT-B-201426), the Jiangsu Modern Education and Technology Key Project, China (Grant No. 2014-R-31984), the Jiangsu 333 Project Funded Research Project, China (Grant No. BRA2010004), and the University Science Research Project of Jiangsu Province, China (Grant No. 15KJB520010).

摘要/Abstract

摘要： Reduction of electromagnetic scattering from a conducting cylinder could be achieved by covering it with optimized multilayers of normal dielectric and plasmonic material. The plasmonic material with intrinsic losses could degrade the cloaking effect. Using a genetic algorithm, we present the optimized design of loss and gain multilayers for reduction of the scattering from a perfect conducting cylinder. This multilayered structure is theoretically and numerically analyzed when the plasmonic material with low loss and high loss respectively is considered. We demonstrate by full-wave simulation that the optimized nonmagnetic gain-loss design can greatly compensate the decreased cloaking effect caused by loss material, which facilitates the realization of practical electromagnetic cloaking, especially in the optical range.

关键词: transformation optics, invisibility cloak, metamaterial

Abstract: Reduction of electromagnetic scattering from a conducting cylinder could be achieved by covering it with optimized multilayers of normal dielectric and plasmonic material. The plasmonic material with intrinsic losses could degrade the cloaking effect. Using a genetic algorithm, we present the optimized design of loss and gain multilayers for reduction of the scattering from a perfect conducting cylinder. This multilayered structure is theoretically and numerically analyzed when the plasmonic material with low loss and high loss respectively is considered. We demonstrate by full-wave simulation that the optimized nonmagnetic gain-loss design can greatly compensate the decreased cloaking effect caused by loss material, which facilitates the realization of practical electromagnetic cloaking, especially in the optical range.

Key words: transformation optics, invisibility cloak, metamaterial

中图分类号: (Electromagnetic wave propagation; radiowave propagation)

41.20.Jb

42.25.Fx (Diffraction and scattering) 42.79.-e (Optical elements, devices, and systems)

余振中, 赵国树, 孙罡, 司海飞, 杨忠. Optimization of loss and gain multilayers for reducing the scattering of a perfect conducting cylinder[J]. 中国物理B, 2016, 25(7): 74101-074101.

Zhen-Zhong Yu(余振中), Guo-Shu Zhao(赵国树), Gang Sun(孙罡), Hai-Fei Si(司海飞), Zhong Yang(杨忠). Optimization of loss and gain multilayers for reducing the scattering of a perfect conducting cylinder[J]. Chin. Phys. B, 2016, 25(7): 74101-074101.

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Optimization of loss and gain multilayers for reducing the scattering of a perfect conducting cylinder

Optimization of loss and gain multilayers for reducing the scattering of a perfect conducting cylinder

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