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首页> 外文期刊>_Applied Physics Express >Biexciton Luminescence from Individual Isoelectronic Traps in Nitrogen 3-Doped GaAs
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Biexciton Luminescence from Individual Isoelectronic Traps in Nitrogen 3-Doped GaAs

机译:氮3掺杂GaAs中单个等电子阱的双激子发光

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摘要

We report on the observation of biexciton luminescence from single isoelectronic traps formed by nitrogen-nitrogen pairs in nitrogen δ-doped GaAs. The biexciton luminescence intensity showed a quadratic dependence on the excitation power while the exciton luminescence intensity increased linearly with increasing excitation power. The biexciton binding energy was found to be 8 meV, which is considerably larger than that reported for single InAs quantum dots in GaAs. We have also found that both the biexciton and exciton emission lines show completely unpolarized and no fine-structure splitting. This is suitable for the application to polarization-entangled photon pairs.
机译:我们报告了由氮δ掺杂GaAs中的氮-氮对形成的单个等电子阱的双激子发光的观察结果。双激子发光强度显示出对激发功率的二次依赖性,而激子发光强度随激发功率的增加线性增加。发现双激子结合能为8meV,这比报道的GaAs中单个InAs量子点的能量大得多。我们还发现,双激子和激子发射谱线都显示出完全非极化的,并且没有精细的结构分裂。这适用于偏振纠缠的光子对。

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  • 来源
    《_Applied Physics Express》 |2012年第11期|111201.1-111201.3|共3页
  • 作者单位

    Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan;

    Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan;

    Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan;

    Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan;

    Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan;

    Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan;

    Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan;

    Department of Advanced Materials Science, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan;

    Department of Advanced Materials Science, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan;

    Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;

    Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan;

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