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Title: Directionality fields generated by a local Hilbert transform in optics
Authors: Staliunas, Kestutis
Ahmed, Waqas Waseem
Botey, Muriel M.
Herrero, Ramon
Hayran, Zeki
Kurt, Hamza
Keywords: Parity 
 parity-time symmetric
Issue Date: 2019
Publisher: SPIE
Source: Staliunas, K., Ahmed, W., Herrero, R., Botey, M., Hayran, Z., and Kurt, H. (2019, April). Directionality fields generated by a local Hilbert transform in optics. In Metamaterials XII (Vol. 11025, p. 1102506). International Society for Optics and Photonics.
Abstract: We propose a new approach of optical field management based on a local Hilbert transform, where the non-Hermitian potentials generating arbitrary vector fields of directionality, p?(r?), with desired shapes and topologies are designed. We derive a local Hilbert transform to build systematically 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, to generate vortices in the probe fields, and others. Physically, the proposed directionality fields provide a flexible new mechanism for dynamically shaping and precise control over probe fields leading to novel effects in wave dynamics. © 2019 SPIE.
ISBN: 978-151062716-1
ISSN: 0277786X
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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