Controllable transparency and slow light in a hybrid optomechanical system with quantum dot molecules
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Controllable transparency and slow light in a hybrid optomechanical system with quantum dot molecules Chunchao Yu1,2 · Wenxing Yang1,2 · Lihui Sun1,2 · Huafeng Zhang1,2 · Fang Chen1,2 Received: 3 February 2020 / Accepted: 2 May 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Controllable transparency and slow light are discussed theoretically in a hybrid optomechanical system consisting of quantum dot molecules (QDMs). Fano resonance occurs when a pump laser is applied and its characteristics are investigated under controlling different system parameters. The group velocity index of slow light is analyzed and can be adjusted by the tunneling effect in the QDMs. Such a result may be used to design tunable optical buffer or in other quantum information processing. Keywords Optomechanical system · Optomechanically induced transparency · Fano resonance · Quantum dot molecules
1 Introduction In the past decades, the optomechanical system, known as a perfect platform to study quantum-mechanical behavior of macroscopic objects, has attracted a great deal of attention due to its potential application such as, optical switching and buffer (Chen et al. 2011; Zhou et al. 2013; Yan et al. 2014; Liu et al. 2017; Bhattacherjee and Hasan 2018), ground state cooling (Schliesser et al. 2006; Gigan et al. 2006; Teufel et al. 2011; O’Connell et al. 2010; Guo et al. 2014; Li et al. 2019), photon blockade (Rabl 2011; Nunnenkamp et al. 2011; Wang et al. 2015; Shi et al. 2018; Huang et al. 2018), sensing (Forstner et al. 2012; Mirza and van Enk 2014; Reinhardt et al. 2016; Kaviani et al. 2019), and so on. One of the most recent researches is optomechanical device based on a nanobeam slot-mode photonic crystal cavity by Kaviani et al. (2019) which can be used to measure the orbital angular momentum of light. Simultaneously, many interesting phenomena have been examined thoroughly such as quantum entanglement (Farace and Giovannetti 2012; Wang et al. 2014; Riedinger et al. 2018), high-order sidebands (Xiong et al. 2012; Kong et al. 2017; Yang et al. 2017; Liu et al. 2018; Si et al. 2018; He 2019), optical bistability and multibility * Wenxing Yang [email protected] 1
School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou 434023, China
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Institute of Quantum Optics and Information Photonics, Yangtze University, Jingzhou 434023, China
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(Bhattacherjee and Hasan 2018; Jiang et al. 2013; Kyriienko et al. 2014; Yasir and Liu 2015; Jiang et al. 2016; Sarma and Sarma 2016; Bhattacherjee and Hasan 2018), optomechanically induced transparency (OMIT) (Zhou et al. 2013; Yan et al. 2014; Weis et al. 2010; Safavi-Naeini et al. 2011; Kronwald and Marquardt 2013; Ma et al. 2014; Jing et al. 2015; Hou et al. 2015; Lei et al. 2015; Sohail et al. 2016; Zhang et al. 2018; Xiong and Wu 2018; He et al. 2018a; b), optomechanically induced absorption (OMIA) (Hou et al. 2015; Zhang et al. 2018; Sun et al. 2018; Ullah 2019;
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