Work

PT -Symmetric Talbot Effects

Year: 2012

Type: article

Abstract: We show that complex PT-symmetric photonic lattices can lead to a new class of self-imaging Talbot effects. For this to occur, we find that the input field pattern has to respect specific periodicities dictated by the symmetries of the system. While at the spontaneous PT-symmetry breaking point the image revivals occur at Talbot lengths governed by the characteristics of the passive lattice, at the exact phase it depends on the gain and loss parameter, thus allowing one to control the imaging process.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.109.033902

Authors: Hamidreza Ramezani, D. N. Christodoulides, V. Kovanis, I. Vitebskiy, Tsampikos Kottos

Institutions: Wesleyan University, University of Central Florida, Wright-Patterson Air Force Base, U.S. Air Force Research Laboratory Sensors Directorate, Max Planck Institute for Dynamics and Self-Organization

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, Division of Electrical, Communications and Cyber Systems, Air Force Office of Scientific Research

Awards: G2318466067, G2889185332, IDR: Collaborative Research: Novel Photonic Materials and Devices based on Non-Hermitian Optics, G7614812600