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Phase tunable slow light in double quantum dot molecules

SHIYOU DING1,2, CHUNCHAO YU1,2,* , XUN XIAO1,2, LIHUI SUN1,2, HUAFENG ZHANG1,2, FANG CHEN1,2

Affiliation

  1. School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou, 434023, China
  2. Institute of Quantum Optics and Information Photonics, Yangtze University, Jingzhou 434023, China

Abstract

Phase-controlled slow and fast light in double coupled quantum dot molecules (QDMs) is researched theoretically. The system absorption and slow factor are 2π-period phase-dependent. It is very effective to switch between slow-light and fast-light state by changing the frequency detuning, Rabi frequency and relative phase of the three coupling lasers. Due to the QDMs’ more flexible and adjustable properties than conventional atomic ones, such a system may be more practical. This work may be used to design tunable optical buffer or other solid-state optical devices.

Keywords

Slow light, Slow factor, Quantum dot molecule.

Citation

SHIYOU DING, CHUNCHAO YU, XUN XIAO, LIHUI SUN, HUAFENG ZHANG, FANG CHEN, Phase tunable slow light in double quantum dot molecules, Optoelectronics and Advanced Materials - Rapid Communications, 15, 1-2, January-February 2021, pp.26-31 (2021).

Submitted at: Nov. 12, 2019

Accepted at: Feb. 12, 2021