Optical diodes in nonlinear structures with parity-time symmetries

Hamidreza Ramezani; Zin Lin; Tsampikos Kottos; Demetrios N. Christodoulides

doi:10.1117/12.893195

12 September 2011 Optical diodes in nonlinear structures with parity-time symmetries

Hamidreza Ramezani, Zin Lin, Tsampikos Kottos, Demetrios N. Christodoulides

Proceedings Volume 8095, Active Photonic Materials IV; 80950L (2011) https://doi.org/10.1117/12.893195
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

We show that nonlinear optical structures involving a balanced gain-loss profile can act as optical diodes. This is made possible by exploiting the interplay between the fundamental symmetries of parity (P) and time (T), with optical nonlinear Kerr effects. This unidirectional propagation is demonstrated for the case of a PT -symmetric nonlinear coupler and a PT-symmetric Bragg grating.

Citation Download Citation

Hamidreza Ramezani, Zin Lin, Tsampikos Kottos, and Demetrios N. Christodoulides "Optical diodes in nonlinear structures with parity-time symmetries", Proc. SPIE 8095, Active Photonic Materials IV, 80950L (12 September 2011); https://doi.org/10.1117/12.893195

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