All-Optical Depletion of Dark Excitons from a Semiconductor Quantum Dot
All-Optical Depletion of Dark Excitons from a Semiconductor Quantum Dot
复制标题
半导体量子点暗激子的全光耗尽
DOI:
--
复制
发表时间:
2015
期刊:
影响因子:
--
通讯作者:
D. Gershoni
中科院分区:
文献类型:
--
作者:
E. Schmidgall;I. Schwartz;D. Cogan;L. Gantz;T. Heindel;S. Reitzenstein;D. Gershoni
Semiconductor quantum dots are considered to be the leading venue for fabricating on-demand sources of single photons. However, the generation of long-lived dark excitons imposes significant limits on the efficiency of these sources. We demonstrate a technique that optically pumps the dark exciton population and converts it to a bright exciton population, using intermediate excited biexciton states. We show experimentally that our method considerably reduces the DE population while doubling the triggered bright exciton emission, approaching thereby near-unit fidelity of quantum dot depletion.
影响因子:
3.7
作者:
Kodriano Y
通讯作者:
Kodriano Y
影响因子:
19.6
作者:
Poem, E.;Kodriano, Y.;Gershoni, D.
通讯作者:
Gershoni, D.
DOI:
10.1002/pssc.200777634
发表时间:
2008
期刊:
physica status solidi c
影响因子:
--
作者:
Poem E
通讯作者:
Poem E