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arXiv · 1605.06151

Scattering properties of PT-symmetric objects

Mohammad-Ali Miri·Mohammad Amin Eftekhar·Margarida Facao·Ayman F. Abouraddy·Ahmed Bakry·Mir A. N. Razvi·Ahmed Alshahrie·Andrea Alù·Demetrios N. Christodoulides
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Abstract

We investigate the scattering response of parity-time (PT) symmetric structures. We show that, due to the local flow of energy between gain and loss regions, such systems can deflect light in unusual ways, as a function of the gain/loss contrast. Such structures are highly anisotropic and their scattering patterns can drastically change as a function of the angle of incidence. In addition, we derive a modified optical theorem for PT-symmetric scattering systems, and discuss its ramifications.

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Mohammad-Ali Miri, Mohammad Amin Eftekhar, Margarida Facao, Ayman F. Abouraddy, Ahmed Bakry, Mir A. N. Razvi, Ahmed Alshahrie, Andrea Alù, Demetrios N. Christodoulides. 2016-05-19. Scattering properties of PT-symmetric objects. https://doi.org/10.1088/2040-8978%2F18%2F7%2F075104

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