Inverse-design of non-Hermitian potentials for light management
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Cita com:
hdl:2117/384499
Tipus de documentText en actes de congrés
Data publicació2022
EditorInternational Society for Photo-Optical Instrumentation Engineers (SPIE)
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 4.0 Internacional
Abstract
In this paper, we propose a general inverse-design strategy based on genetic algorithm optimization to achieve ‘on demand’ manipulation of light in one-dimensional (1D) and two-dimensional (2D) non-Hermitian systems. The optimization process faithfully creates non-Hermitian potentials from any given arbitrary real (or imaginary) permittivity distribution for the desired frequency selective and broadband asymmetric response in 1D multilayer structures. As a demonstration in 2D, we design periodic and aperiodic complex permittivity spatial distributions to create "sink-type" concentrators of light around a desired area. The proposed inverse-design approach to generate non-Hermitian potentials represents an alternative to the Hilbert Transform (HT) generalizing the Kramers Kronig relations in space, additionally being selective in spectrum.
CitacióBotey, M. [et al.]. Inverse-design of non-Hermitian potentials for light management. A: SPIE Photonics Europe. "Metamaterials XIII: 4-7 April 2022, Strasbourg, France: 9-20 May 2022, online". Washington: International Society for Photo-Optical Instrumentation Engineers (SPIE), 2022, p. 1-6. ISBN 978-1-5106-5137-1. DOI 10.1117/12.2622135.
Dipòsit legal0277-786X
ISBN978-1-5106-5137-1
Versió de l'editorSPIE
Altres identificadorshttps://www.spiedigitallibrary.org
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