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首页> 外文期刊>Physical review >Single quantum dot photocurrent spectroscopy in the cavity quantum electrodynamics regime
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Single quantum dot photocurrent spectroscopy in the cavity quantum electrodynamics regime

机译：腔量子电动力学中的单量子点光电流能谱

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摘要

We study cavity quantum electrodynamics (cQED) in coupled quantum dot-microcavity systems under electrical readout. Strict resonant excitation of a target quantum dot (QD) allows us to monitor the photocurrent response of a single emitter in the quantum limit of light-matter interaction. We find a strong anticorrelation between radiative recombination and nonradiative tunnel escape of photoexcited carries which can be controlled by cQED effects in the Purcell regime. In fact, cavity-enhanced radiative emission from a QD results in a weaker photocurrent signal which reflects the cQED controlled competition between radiative and nonradiative recombination at the single emitter level.
机译：我们研究电读出下耦合量子点-微腔系统中的腔量子电动力学（cQED）。目标量子点（QD）的严格共振激发使我们能够在光物质相互作用的量子极限内监视单个发射器的光电流响应。我们发现辐射重组和光激发携带者的非辐射隧道逃逸之间存在很强的反相关性，这可以通过赛尔区的cQED效应来控制。实际上，来自量子点的腔增强辐射发射会导致较弱的光电流信号，这反映了cQED控制的单个发射极水平的辐射与非辐射复合之间的竞争。

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  • 来源
    《Physical review》 |2012年第16期|161301.1-161301.4|共4页
  • 作者

    P. Gold; M. Gschrey; C. Schneider; S. Hoefling; A. Forchel; M. Kamp; S. Reitzenstein;

  • 作者单位

    Technische Physik and Wilhelm Conrad Roentgen Research Center for Complex Material Systems, Physikalisches Institut, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg, Germany;

    Technische Physik and Wilhelm Conrad Roentgen Research Center for Complex Material Systems, Physikalisches Institut, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg, Germany,Institut fuer Festkoerperphysik, Technische Univer-sitaet Berlin, Hardenbergstrasse 36, D-10623 Berlin, Germany;

    Technische Physik and Wilhelm Conrad Roentgen Research Center for Complex Material Systems, Physikalisches Institut, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg, Germany;

    Technische Physik and Wilhelm Conrad Roentgen Research Center for Complex Material Systems, Physikalisches Institut, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg, Germany;

    Technische Physik and Wilhelm Conrad Roentgen Research Center for Complex Material Systems, Physikalisches Institut, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg, Germany;

    Technische Physik and Wilhelm Conrad Roentgen Research Center for Complex Material Systems, Physikalisches Institut, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg, Germany;

    Technische Physik and Wilhelm Conrad Roentgen Research Center for Complex Material Systems, Physikalisches Institut, Universitaet Wuerzburg, Am Hubland, D-97074 Wuerzburg, Germany,Institut fuer Festkoerperphysik, Technische Univer-sitaet Berlin, Hardenbergstrasse 36, D-10623 Berlin, Germany;

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  • 关键词

    quantum dots; quantum description of interaction of light and matter; related experiments; cavity quantum electrodynamics; micromasers; optoelectronic devices;

    机译：量子点;光与物质相互作用的量子描述;相关实验;腔量子电动力学微型激光器光电设备;

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