Work

Tunable nonlinear parity–time-symmetric defect modes with an atomic cell

Year: 2013

Type: article

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.

Source: Optics Letters

DOI: 10.1364/ol.38.004033

Authors: Chao Hang, Dmitry A. Zezyulin, Vladimir V. Konotop, Guoxiang Huang

Institutions: East China Normal University, University of Lisbon, Centro de Física Teórica e Computacional

Language: English

Topic: Quantum Mechanics and Non-Hermitian Physics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Fundação para a Ciência e a Tecnologia, Project 211

Awards: G4196629642, Projecto Estratégico - UI 618 - 2011-2012, Modos guiados em estruturas com simetria paridade-tempo