Pumping of Quantum Dots with Surface Acoustic Waves

Pumping of Quantum Dots with Surface Acoustic Waves
复制标题

用表面声波泵浦量子点

DOI:
--
复制
发表时间:
2001
期刊:
影响因子:
--
通讯作者:
H. Lipsanen
H. Lipsanen
中科院分区:
--
文献类型:
--
作者:
C. Bödefeld;A. Wixforth;J. Toivonen;M. Sopanen;H. Lipsanen

文献摘要

被引文献

相似文献

半导体量子阱结构上的声表面波伴随着强的横向压电场。这些场可以抑制光生激子,并将碎片(电子-空穴对)捕获在移动的横向势威尔斯中。我们表明,自组装的量子点存在于结构中可以作为非常有效的复合中心,并展示了周期性泵浦量子点的概念。
Surface acoustic waves on a semiconductor quantum well structure are accompanied by strong lateral piezo-electric fields. Those fields can ionize photo-generated excitons and trap the fragments, electron-hole pairs, in the moving lateral potential wells to the wave. We show that self-assembled quantum dots present in the structure can act as very efficient recombination centers and demonstrate the concept of a periodically pumped quantum dot.