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Proceedings Paper

PT-symmetric scatterers (Presentation Recording)
Author(s): Mohammad-Ali Miri; Nicholas Nye; Mercedeh Khajavikhan; Demetrios N. Christodoulides

Paper Abstract

Parity-time (PT) symmetric complex structures can exhibit peculiar properties which are otherwise unattainable in traditional Hermitian systems. This is achieved by judiciously involving balanced regions of gain and loss. Here we investigate the scattering properties of PT-symmetric diffraction gratings. The presence of the imaginary potential can modify the light transport properties in their far field. This is an outcome of a local power flow taking place between the gain and loss regions in the near field. We show that for a certain gain/loss contrast, all the negative diffraction orders can be eliminated while the positive diffraction orders can be amplified.

Paper Details

Date Published: 5 October 2015
PDF: 1 pages
Proc. SPIE 9546, Active Photonic Materials VII, 95461K (5 October 2015); doi: 10.1117/12.2189863
Show Author Affiliations
Mohammad-Ali Miri, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Nicholas Nye, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Mercedeh Khajavikhan, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)
Demetrios N. Christodoulides, CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 9546:
Active Photonic Materials VII
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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