Ideal-lens cloaks and new cloaking strategies

Belin, J. , Tyc, T., Grunwald, M., Oxburgh, S., Cowie, E. N. , White, C. D. and Courtial, J. (2019) Ideal-lens cloaks and new cloaking strategies. Optics Express, 27(26), pp. 37327-37336. (doi: 10.1364/OE.27.037327) (PMID:31878515)

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Previously [Courtial et al., Opt. Express 26, 17872 (2018)] we presented the theory of transformation optics (TO) with ideal lenses and demonstrated an example, an omnidirectional lens. Here we interpret this omnidirectional lens in two different parameter regimes as ideal-lens cloaks that employ different cloaking strategies: a standard “shrink cloak” in which objects appear smaller (ideally zero) and a novel “abyss cloak” in which interior physical-space positions are mapped to the exterior and thus are visible only from certain directions. We proceed to combine two nested abyss cloaks into another novel, omnidirectional, “bi-abyss cloak.” Our work significantly extends the arsenal of cloaking strategies.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Courtial, Dr Johannes and Cowie, Dr Euan and Belin, Mr Jakub and Oxburgh, Mr Stephen
Authors: Belin, J., Tyc, T., Grunwald, M., Oxburgh, S., Cowie, E. N., White, C. D., and Courtial, J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN (Online):1094-4087
Copyright Holders:Copyright © 2019 Journal
First Published:First published in Optics Express 27:37327-37336
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
172865EPSRC DTP 16/17 and 17/18Tania GalabovaEngineering and Physical Sciences Research Council (EPSRC)EP/N509668/1Research and Innovation Services
170757Telescope windows: low-vision scopes to cloaksJohannes CourtialEngineering and Physical Sciences Research Council (EPSRC)EP/M010724/1P&S - Physics & Astronomy