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Title: Ray-optics cloaking devices for large objects in incoherent natural light
Authors: Chen, Hongsheng
Zheng, Bin
Shen, Lian
Wang, Huaping
Zhang, Xianmin
Zheludev, Nikolay I.
Zhang, Baile
Keywords: DRNTU::Science::Physics::Optics and light
Issue Date: 2013
Source: Chen, H., Zheng, B., Shen, L., Wang, H., Zhang, X., Zheludev, N. I., & Zhang, B. (2013). Ray-optics cloaking devices for large objects in incoherent natural light. Nature Communications, 4(2652).
Series/Report no.: Nature communications
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.
ISSN: 2041-1723
DOI: 10.1038/ncomms3652
Rights: This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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