Inverse design of light-matter interactions in macroscopic QED

Bennett, R. and Buhmann, S. Y. (2020) Inverse design of light-matter interactions in macroscopic QED. New Journal of Physics, 22(9), 093014. (doi: 10.1088/1367-2630/abac3a)

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Inverse design represents a paradigm shift in the development of nanophotonic devices, where optimal geometries and materials are discovered by an algorithm rather than symmetry considerations or intuition. Here we present a very general formulation of inverse design that is applicable to atomic interactions in external environments, and derive from this some explicit formulae for optimisation of spontaneous decay rates, Casimir-Polder forces and resonant energy transfer. Using Purcell enhancement of the latter as a simple example, we employ finite-difference time-domain techniques in a proof-of-principle demonstration of our formula, finding enhancement of the rate many orders of magnitude larger than a selection of traditional designs.

Item Type:Articles
Additional Information:The authors thank the Deutsche Forschungsgemeinschaft (grant BU 1803/3-1476), and R.B. acknowledges financial support by the Alexander von Humboldt Foundation.
Glasgow Author(s) Enlighten ID:Bennett, Dr Robert
Authors: Bennett, R., and Buhmann, S. Y.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:New Journal of Physics
Publisher:IOP Publishing
ISSN (Online):1367-2630
Published Online:04 August 2020
Copyright Holders:Copyright © 2020 The Authors
First Published:First published in New Journal of Physics 22(9): 093014
Publisher Policy:Reproduced under a Creative Commons License
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