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Title: PT-vector fields
Authors: Ahmed, Waqas Waseem
Herrero, R.
Botey, M.
Hayran, Z.
Kurt, Hamza
Staliunas, Kestutis
Keywords: Parity
balanced gain
Issue Date: 2018
Publisher: SPIE
Source: Ahmed, W. W., Herrero, R., Botey, M., Hayran, Z., Kurt, H., and Staliunas, K. (2018, May). PT-vector fields. In Metamaterials XI (Vol. 10671, p. 106710J). International Society for Optics and Photonics.
Abstract: Non-Hermitian potentials, as known since a decade, can favor unidirectionality of the flows in one and two-dimensional systems. Inspired by such counterintuitive property of non-Hermitian potential, we propose a novel concept of PT-vector fields to manipulate the field flows in two- (or higher) dimensional systems. The idea is based on designing complex potentials favoring arbitrary vector fields of directionality p(r) with desired shapes and topologies. To achieve this, we derive a new mathematical tool referred as local Hilbert transform. We study interesting cases of such vector fields in the form of sink, vortex, and circular channel, constructed from different background patterns using local Hilbert transform. This new concept provides a precise control over the dynamics of the probe fields, which may have potential applications in technological systems. © 2018 SPIE.
ISBN: 978-151061868-8
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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