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Título:	Non-Hermitian Light Management Based on Local Hilbert Transform
Autor/a:	Staliunas, Kestutis; Waseem Ahmed, Waqas; Botey Cumella, Muriel; Herrero Simon, Ramon
Otros autores:	Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
Abstract:	Light patterns; Metamaterials; Non-Hermitian optics; Microlasers
Abstract:	Peer Reviewed
Materia(s):	-Àrees temàtiques de la UPC::Física -Optics -Photonics -Lasers -We demonstrate a novel idea of nonhermitian management of light based on a local Hilbert transform. Local Hilbert transform -a substantial modification of classical Hilbert transform allows to design non-Hermitian vector fields of arbitrary directionality -with desired shapes and topologies. We derive a local Hilbert transform to systematically build such potentials -by modifying background potentials (being either regular or random -extended or localized). In particular -we explore particular directionality fields -for instance in the form of a focus to create sinks for probe fields (which could help to increase absorption at the sink) -or to generate vortices in the probe fields. Physically -the proposed mechanism provide a flexible new tool for dynamically shaping and precise control over probe fields leading to novel effects in nonlinear wave dynamics -and in particular in broad area microlasers. -Òptica -Làsers -Fotònica
Derechos:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Tipo de documento:	Artículo - Versión presentada Objeto de conferencia
Editor:	Institute of Electrical and Electronics Engineers (IEEE)
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