Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/788
Title: Directionality fields generated by a local Hilbert transform
Authors: Ahmed, Waqas Waseem
Herrero, Ramon
Botey, Muriel M.
Hayran, Zeki
Kurt, Hamza
Staliünas, Kestutis
200103
Keywords: Probes
Non-hermitian hamiltonians
Symmetry
Optics
Issue Date: 15-Mar-2018
Publisher: American Physical Society
Source: Ahmed, W. W., Herrero, R., Botey, M., Hayran, Z., Kurt, H., & Staliunas, K. (2018). Directionality fields generated by a local Hilbert transform. Physical Review A, 97(3), 033824.
Abstract: We propose an approach based on a local Hilbert transform to design non-Hermitian potentials generating arbitrary vector fields of directionality, p→(r→), 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). 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 directionality fields provide a flexible mechanism for dynamical shaping and precise control over probe fields leading to novel effects in wave dynamics.
URI: https://journals.aps.org/pra/pdf/10.1103/PhysRevA.97.033824
https://hdl.handle.net/20.500.11851/788
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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