Transformation-invariant metamaterials

The fundamental semiconductor concept of doping has recently been transplanted to photonics in the platform of epsilon-near-zero (ENZ) media. By doping nonmagnetic impurities, ENZ media can exhibit almost arbitrary magnetism. However, this original photonic doping approach results only in isotropic...

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Main Authors: Zhang, Youming, Luo, Yu, Pendry, J. B., Zhang, Baile
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2019
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Online Access:https://hdl.handle.net/10356/93520
http://hdl.handle.net/10220/49969
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-935202023-02-28T20:03:24Z Transformation-invariant metamaterials Zhang, Youming Luo, Yu Pendry, J. B. Zhang, Baile School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies (CDPT) Science::Physics::Optics and light Metamaterials Optics & Lasers The fundamental semiconductor concept of doping has recently been transplanted to photonics in the platform of epsilon-near-zero (ENZ) media. By doping nonmagnetic impurities, ENZ media can exhibit almost arbitrary magnetism. However, this original photonic doping approach results only in isotropic media and thus cannot achieve impedance matching for all incident angles. We extend the photonic doping approach of ENZ media by adding anisotropy, which enables full transparency with omnidirectional impedance matching. More importantly, such anisotropically doped ENZ media preserve their material parameters under arbitrary coordinate transformations, thereby providing a powerful platform to construct various ideal transformation optical devices. As an example, a full-parameter omnidirectional invisibility cloak is demonstrated to hide objects from a wide range of incident angles. The transformation-invariant material proposed not only supplements and extends the rising technologies of ENZ media but also constitutes a significant step towards the practical implementation of ideal transformation optical devices. Published version 2019-09-19T06:05:14Z 2019-12-06T18:40:46Z 2019-09-19T06:05:14Z 2019-12-06T18:40:46Z 2019 Journal Article Zhang, Y., Luo, Y., Pendry, J., & Zhang, B. (2019). Transformation-invariant metamaterials. Physical Review Letters, 123(6), 067701-. doi:10.1103/PhysRevLett.123.067701 0031-9007 https://hdl.handle.net/10356/93520 http://hdl.handle.net/10220/49969 10.1103/PhysRevLett.123.067701 en Physical Review Letters 10.21979/N9/DVLKHJ © 2019 American Physical Society. All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society. 6 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics::Optics and light
Metamaterials
Optics & Lasers
spellingShingle Science::Physics::Optics and light
Metamaterials
Optics & Lasers
Zhang, Youming
Luo, Yu
Pendry, J. B.
Zhang, Baile
Transformation-invariant metamaterials
description The fundamental semiconductor concept of doping has recently been transplanted to photonics in the platform of epsilon-near-zero (ENZ) media. By doping nonmagnetic impurities, ENZ media can exhibit almost arbitrary magnetism. However, this original photonic doping approach results only in isotropic media and thus cannot achieve impedance matching for all incident angles. We extend the photonic doping approach of ENZ media by adding anisotropy, which enables full transparency with omnidirectional impedance matching. More importantly, such anisotropically doped ENZ media preserve their material parameters under arbitrary coordinate transformations, thereby providing a powerful platform to construct various ideal transformation optical devices. As an example, a full-parameter omnidirectional invisibility cloak is demonstrated to hide objects from a wide range of incident angles. The transformation-invariant material proposed not only supplements and extends the rising technologies of ENZ media but also constitutes a significant step towards the practical implementation of ideal transformation optical devices.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Zhang, Youming
Luo, Yu
Pendry, J. B.
Zhang, Baile
format Article
author Zhang, Youming
Luo, Yu
Pendry, J. B.
Zhang, Baile
author_sort Zhang, Youming
title Transformation-invariant metamaterials
title_short Transformation-invariant metamaterials
title_full Transformation-invariant metamaterials
title_fullStr Transformation-invariant metamaterials
title_full_unstemmed Transformation-invariant metamaterials
title_sort transformation-invariant metamaterials
publishDate 2019
url https://hdl.handle.net/10356/93520
http://hdl.handle.net/10220/49969
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