Open AccessBistable four-wave mixing response in a semiconductor quantum dot coupled to a photonic crystal nanocavity
Author(s) -
Jianbo Li,
Si Xiao,
Shan Liang,
Meng-Dong He,
Jianhua Luo,
Nam-Chol Kim,
Liqun Chen
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.025663
Subject(s) - bistability , optical bistability , photonic crystal , four wave mixing , physics , quantum dot , optics , optoelectronics , photonics , mixing (physics) , coupling (piping) , semiconductor , nonlinear optics , materials science , laser , quantum mechanics , metallurgy
We perform a theoretical study of the bistable four-wave mixing (FWM) response in a coupled system comprised of a semiconductor quantum dot (SQD) and a photonic crystal (PC) nanocavity in which the SQD is embedded. It is shown that the shape of the FWM spectrum can switch among single-peaked, double-peaked, triple-peaked, and four-peaked arising from the vacuum Rabi splitting and the exciton-nanocavity coupling. Especially, we map out bistability phase diagrams within a parameter subspace of the system, and find that it is easy to turn on or off the bistable FWM response by only adjusting the excitation frequency or the pumping intensity. Our results offer a feasible means for measuring the SQD-PC nanocavity coupling strength and open a new avenue to design optical switches and memories.