PT-vector fields

W. W. Ahmed; R. Herrero; M. Botey; Z. Hayran; H. Kurt; K. Staliunas

doi:10.1117/12.2307580

7 May 2018 PT-vector fields

W. W. Ahmed, R. Herrero, M. Botey, Z. Hayran, H. Kurt, K. Staliunas

Proceedings Volume 10671, Metamaterials XI; 106710J (2018) https://doi.org/10.1117/12.2307580
Event: SPIE Photonics Europe, 2018, Strasbourg, France

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 𝑝⃗(𝑟⃗) 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.

Citation Download Citation

W. W. Ahmed, R. Herrero, M. Botey, Z. Hayran, H. Kurt, and K. Staliunas "PT-vector fields", Proc. SPIE 10671, Metamaterials XI, 106710J (7 May 2018); https://doi.org/10.1117/12.2307580

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available