Tunable nonlinear PT-symmetric defect modes with an atomic cell
Optics
2015-06-17 v1 Pattern Formation and Solitons
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.
Cite
@article{arxiv.1309.2839,
title = {Tunable nonlinear PT-symmetric defect modes with an atomic cell},
author = {Chao Hang and Dmitry A. Zezyulin and Vladimir V. Konotop and Guoxiang Huang},
journal= {arXiv preprint arXiv:1309.2839},
year = {2015}
}
Comments
4 pages, 2 figures, to be appeared in Opt. Lett