Lens stars and Platonic lenses

Bělín, J. , Courtial, J. and Tyc, T. (2021) Lens stars and Platonic lenses. Optics Express, 29(25), pp. 42055-42074. (doi: 10.1364/OE.442825)

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Lens stars comprise identical ideal thin lenses arranged in a regular star shape centred on the common principal point. They satisfy the edge-imaging condition of transformation optics (TO) and are thus suitable as building blocks of ideal-lens TO devices [J. Opt. Soc. Am. A 37, 305 (2020)]. Here we show that the ray trajectories in lens stars are piecewise straight approximations of conic sections. We also generalise lens stars to Platonic lenses, highly symmetric combinations of lens stars based on Platonic solids, and find that ray trajectories in Platonic lenses are closed and planar; we design a more general ideal-lens cloak; and we clarify the process of designing ideal-lens TO devices. Throughout, we illustrate our results with ray-tracing simulations. Our results add to the knowledge of TO with ideal lenses.

Item Type:Articles
Additional Information:Funding: European Social Fund (CZ.02.2.69/0.0/0.0/18_053/0016962).
Glasgow Author(s) Enlighten ID:Courtial, Dr Johannes and Belin, Mr Jakub
Authors: Bělín, J., Courtial, J., and Tyc, T.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN (Online):1094-4087
Published Online:02 December 2021
Copyright Holders:Copyright © 2021 The Optical Society of America
First Published:First published in Optics Express 29(25): 42055-42074
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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