Work

Non-Hermitian engineering for brighter broadband pseudothermal light

Year: 2019

Type: article

Abstract: We show that non-Hermitian engineering can play a positive role in quantum systems. This is in contrast to the widely accepted notion that optical losses are a drawback that must be eliminated or, at least, minimized. We take advantage of the interplay between nonlinear interactions and loss to show that spectral-loss engineering can relax phase-matching conditions, enabling generation of broadband pseudothermal states at new frequencies. This opens the door for utilizing the full potential of semiconductor materials that exhibit giant nonlinearities but lack the necessary ingredients for achieving quasi-phase-matching. This in turn may pave the way for building on-chip quantum light sources.

Source: Physical Review A

DOI: 10.1103/physreva.100.043805

Authors: Nicolás Quesada, Eugene Adjei, Ramy El-Ganainy, Agata M. Brańczyk

Institutions: Perimeter Institute, University of Waterloo, Michigan Technological University

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, Government of Canada, Natural Sciences and Engineering Research Council of Canada, Army Research Office

Awards: G4204426802, Collaborative Research: Non-Hermitian wave mixing for highly efficient nonlinear light sources