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Ray-optics cloaking devices for large objects in incoherent natural light

Ray-optics cloaking devices for large objects in incoherent natural light
Ray-optics cloaking devices for large objects in incoherent natural light
A cloak that can hide living creatures from sight is a common feature of mythology but still remains unrealized as a practical device. To preserve the wave phase, the previous cloaking solution proposed by Pendry and colleagues required transformation of the electromagnetic space around the hidden object in such a way that the rays bending around the object inside the cloak region have to travel faster than those passing it by. This difficult phase preservation requirement is the main obstacle for building a broadband polarization-insensitive cloak for large objects. Here we propose a simplified version of Pendry’s cloak by abolishing the requirement for phase preservation, as it is irrelevant for observation using incoherent natural light with human eyes, which are phase and polarization insensitive. This allows for a cloak design on large scales using commonly available materials. We successfully demonstrate the cloaking of living creatures, a cat and a fish, from the eye.
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Chen, Hongsheng
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Zheng, Bin
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Shen, Lian
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Wang, Huaping
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Zhang, Xianmin
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Zheludev, Nikolay I.
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Zhang, Baile
0e59fb43-d20b-40ea-ac50-db690b782f86
Chen, Hongsheng
b7cef622-4017-49f4-bb72-6c25772b0c3d
Zheng, Bin
8bd55b11-1694-41a1-bc9d-a6726509e3dd
Shen, Lian
96a51319-31af-4907-9390-3ea94267766c
Wang, Huaping
30980e65-7c69-4810-a70e-df0bc6730410
Zhang, Xianmin
a6138411-d753-41ea-8a57-4f767e7107a2
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Zhang, Baile
0e59fb43-d20b-40ea-ac50-db690b782f86

Chen, Hongsheng, Zheng, Bin, Shen, Lian, Wang, Huaping, Zhang, Xianmin, Zheludev, Nikolay I. and Zhang, Baile (2013) Ray-optics cloaking devices for large objects in incoherent natural light. Nature Communications, 4, 1-6. (doi:10.1038/ncomms3652).

Record type: Article

Abstract

A cloak that can hide living creatures from sight is a common feature of mythology but still remains unrealized as a practical device. To preserve the wave phase, the previous cloaking solution proposed by Pendry and colleagues required transformation of the electromagnetic space around the hidden object in such a way that the rays bending around the object inside the cloak region have to travel faster than those passing it by. This difficult phase preservation requirement is the main obstacle for building a broadband polarization-insensitive cloak for large objects. Here we propose a simplified version of Pendry’s cloak by abolishing the requirement for phase preservation, as it is irrelevant for observation using incoherent natural light with human eyes, which are phase and polarization insensitive. This allows for a cloak design on large scales using commonly available materials. We successfully demonstrate the cloaking of living creatures, a cat and a fish, from the eye.

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ncomms3652 - Version of Record
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More information

Published date: 24 October 2013
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 360055
URI: https://eprints.soton.ac.uk/id/eprint/360055
PURE UUID: 2599135b-f545-4725-a48c-b67bfd51cb0f
ORCID for Nikolay I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

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Date deposited: 25 Nov 2013 11:31
Last modified: 20 Jul 2019 01:22

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Contributors

Author: Hongsheng Chen
Author: Bin Zheng
Author: Lian Shen
Author: Huaping Wang
Author: Xianmin Zhang
Author: Baile Zhang

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