...
首页> 外文期刊>Physical review >Mutual coupling of two semiconductor quantum dots via an optical nanocavity
【24h】

Mutual coupling of two semiconductor quantum dots via an optical nanocavity

机译:通过光学纳米腔互耦合两个半导体量子点

获取原文
获取原文并翻译 | 示例
           

摘要

We present an experimental and theoretical study of a system consisting of two spatially separated self-assembled inGaAs quantum dots strongly coupled to a single optical nanocavity mode. Due to their different size and compositional profiles, the two quantum dots exhibit markedly different dc Stark shifts. This allows us to tune them into mutual resonance with each other and a photonic crystal nanocavity mode as a bias voltage is varied. Photoluminescenee measurements show a characteristic triple peak during the double anticrossing. which is a clear signature of a coherently coupled system of three quantum states. We fit the entire set of emission spectra of the coupled system to theory and are able to investigate the coupling between the two quantum dots via the cavity mode, and the coupling between the two quantum dots when they are detuned from the cavity mode. We suggest that the resulting quantum V-system may be advantageous since dephasing due to incoherent losses from the cavity mode can be avoided.
机译:我们介绍了一个系统的实验和理论研究,该系统由两个空间分隔的自组装inGaAs量子点组成,这些量子点与单个光学纳米腔模式强耦合。由于它们的大小和组成轮廓不同,两个量子点表现出明显不同的直流斯塔克位移。这使我们能够将它们彼此调谐成相互谐振的状态,并且随着偏置电压的变化,光子晶体纳米腔模式也会相互共振。光致发光的测量显示在双重反交叉期间的特征性三重峰。这是三个量子态相干耦合系统的清晰特征。我们将耦合系统的整个发射光谱集合拟合到理论上,并且能够研究通过腔模的两个量子点之间的耦合,以及当两个量子点从腔模失谐时的两个量子点之间的耦合。我们建议得到的量子V系统可能是有利的,因为可以避免由于腔模的非相干损耗而引起的相移。

著录项

  • 来源
    《Physical review》 |2010年第7期|p.075305.1-075305.6|共6页
  • 作者单位

    Walter Schottky Institut, Technische Universital Munchen, Am Couiombwall 3, 85748 Garching, Germany;

    rnWalter Schottky Institut, Technische Universital Munchen, Am Couiombwall 3, 85748 Garching, Germany Instituto de Fisica, Universidade Federal de Uberldndia, 38400-902 Uberlandia, MG, Brazil;

    DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, 0rsteds Plads 343. DK-2800 Kongens Lyngby, Denmark;

    Walter Schottky Institut, Technische Universital Munchen, Am Couiombwall 3, 85748 Garching, Germany;

    rnWalter Schottky Institut, Technische Universital Munchen, Am Couiombwall 3, 85748 Garching, Germany;

    rnWalter Schottky Institut, Technische Universital Munchen, Am Couiombwall 3, 85748 Garching, Germany;

    rnDTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, 0rsteds Plads 343. DK-2800 Kongens Lyngby, Denmark;

    Walter Schottky Institut, Technische Universital Munchen, Am Couiombwall 3, 85748 Garching, Germany;

    rnWalter Schottky Institut, Technische Universital Munchen, Am Couiombwall 3, 85748 Garching, Germany;

    rnWalter Schottky Institut, Technische Universital Munchen, Am Couiombwall 3, 85748 Garching, Germany;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    quantum dots; quantum description of interaction of light and matter; related experiments; photonic bandgap materials; polaritons (including photon-phonon and photon-magnon interactions);

    机译:量子点;光与物质相互作用的量子描述;相关实验;光子带隙材料;极化子(包括光子-声子和光子-磁子相互作用);

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号