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Droplet epitaxial growth of highly symmetric quantum dots emitting at telecommunication wavelengths on InP(111)A

机译：在InP（111）A上以电信波长发射的高度对称量子点的液滴外延生长

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摘要

We demonstrate the formation of In As quantum dots (QDs) on InAlAs/InP(111)A by means of droplet epitaxy. The C_(3v) symmetry of the (111)A substrate enabled us to realize highly symmetric QDs that are free from lateral elongations. The QDs exhibit a disk-like truncated shape with an atomically flat top surface. Photoluminescence signals show broad-band spectra at telecommunication wavelengths of 1.3 and 1.5 μm. Strong luminescence signals are retained up to room temperature. Thus, our QDs are potentially useful for realizing an entangled photon-pair source that is compatible with current telecommunication fiber networks.
机译：我们演示了通过液滴外延在InAlAs / InP（111）A上形成In As量子点（QD）。 （111）A基板的C_（3v）对称性使我们能够实现高度对称的QD，且没有横向延伸。这些量子点呈现出圆盘状的截顶形状，其原子表面平坦。光致发光信号在1.3和1.5μm的电信波长下显示宽带光谱。强发光信号会保留到室温。因此，我们的量子点可能对实现与当前电信光纤网络兼容的纠缠光子对源很有用。

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  • 来源
    《Applied Physics Letters》 |2014年第14期|143106.1-143106.4|共4页
  • 作者

    Neul Ha; Xiangming Liu; Takaaki Mano; Takashi Kuroda; Kazutaka Mitsuishi; Andrea Castellano; Stefano Sanguinetti; Takeshi Noda; Yoshiki Sakuma; Kazuaki Sakoda;

  • 作者单位

    National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan,Graduate School of Engineering, Kyushu University, NIMS, Tsukuba 305-0044, Japan;

    National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan;

    National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan;

    National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan,Graduate School of Engineering, Kyushu University, NIMS, Tsukuba 305-0044, Japan;

    National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan;

    National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan,Dip. di Scienza dei Materiali, Universita di Milano Bicocca, Via Cozzi 55,I-20125 Milano, Italy;

    Dip. di Scienza dei Materiali, Universita di Milano Bicocca, Via Cozzi 55,I-20125 Milano, Italy;

    National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan;

    National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan;

    National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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  • 入库时间 2022-08-18 03:15:49

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