Lasing in GaAs/AlGaAs self-assembled quantum dots
Lasing in GaAs/AlGaAs self-assembled quantum dots
复制标题
DOI：
10.1063/1.2372448
复制
发表时间：
2006-10-30
影响因子：
4
通讯作者：
Koguchi, N.
中科院分区：
文献类型：
--
作者：
Mano, T.;Kuroda, T.;Koguchi, N.
作者展示了通过液滴外延生长的自组装环形 GaAs 量子点 (QD) 的光泵激光作用。对 QD 形状从锥形点到环形点的形态控制导致 QD 系综的光致发光光谱带很窄，反映了它们的小尺寸分布。他们使用环形量子点作为活性激光介质，在高达 300 K 的温度下观察到基态的多模态受激发射。(c) 2006 年美国物理研究所。
The authors have demonstrated photopumped laser action of self-assembled ring-shaped GaAs quantum dots (QDs) grown by droplet epitaxy. Morphological control of the QD shape from conelike dots to ringlike ones results in a narrow spectral band of photoluminescence from the QD ensemble, reflecting their small size distribution. Using ring-shaped QDs as an active laser medium, they observed multimodal stimulated emissions from the ground state at temperatures of up to 300 K. (c) 2006 American Institute of Physics.