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arXiv · 1309.2839

Tunable nonlinear PT-symmetric defect modes with an atomic cell

Chao Hang·Dmitry A. Zezyulin·Vladimir V. Konotop·Guoxiang Huang
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Abstract

We propose a scheme of creating a tunable highly nonlinear defect in a one-dimensional photonic crystal. The defect consists of an atomic cell filled in with two isotopes of three-level atoms. The probe-field refractive index of the defect can be made parity-time (PT) symmetric, which is achieved by proper combination of a control field and of Stark shifts induced by a far-off-resonance field. In the PT-symmetric system families of stable nonlinear defect modes can be formed by the probe field.

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Chao Hang, Dmitry A. Zezyulin, Vladimir V. Konotop, Guoxiang Huang. 2013-09-11. Tunable nonlinear PT-symmetric defect modes with an atomic cell. https://doi.org/10.1364/ol.38.004033

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