Optomechanically Induced Transparency at Exceptional Points

Hao Lü, Changqing Wang, Lan Yang, and Hui Jing

Phys. Rev. Applied 10, 014006 – Published 10 July 2018

Abstract

We study optomechanically induced transparency in a microresonator coupled with nanoparticles. By tuning the relative angle of the nanoparticles, exceptional points (EPs) emerge periodically in this system and thus strongly modify both the transmission rate and the group delay of the signal. As a result, controllable slow-to-fast light switching can be achieved by manipulating external nanoparticles. This provides a new way to engineer EP-assisted optomechanical devices for applications in optical communications and signal processing.

Received 29 March 2018
Revised 18 May 2018

DOI:https://doi.org/10.1103/PhysRevApplied.10.014006

Physics Subject Headings (PhySH)

Electromagnetically induced transparency Mechanical effects of light on material media Optomechanics Quantum optics

Devices Optical microcavities

PT-symmetry

Whispering gallery mode resonators

Atomic, Molecular & Optical

Authors & Affiliations

Hao Lü^1,2,4, Changqing Wang³, Lan Yang³, and Hui Jing^2,*

¹Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
²Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha 410081, China
³Department of Electrical and Systems Engineering, Washington University, St. Louis, Missouri 63130, USA
⁴University of Chinese Academy of Sciences, Beijing 100049, China