Ultrafast conditional carrier dynamics in semiconductor quantum dots
Ultrafast conditional carrier dynamics in semiconductor quantum dots
复制标题
半导体量子点中的超快条件载流子动力学
DOI:
10.1117/12.873835
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Borri P
中科院分区:
文献类型:
--
作者:
Borri P
We provide direct evidence that the macroscopic response of the gain dynamics in electrically-pumped In- GaAs/GaAs quantum dots is a superposition of intradot relaxation dynamics from microstates with multiple discrete carrier numbers. The gain recovery in the presence of an optical pre-pump fully depleting the ground-state gain is measured to be faster than without pre-pump. This effect, opposite to expectations from rate equations with mean-field carrier distributions, is due to a conditional gain recovery in which microstates with slow internal dynamics are suppressed by the pre-pump. The effect is evident at 15K and still observable at 300 K, beneficial for high-speed optical signal processing.
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DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
H. Schneider;W. Chow;S. Koch
通讯作者:
S. Koch
影响因子:
4
作者:
Cesari, Valentina;Langbein, Wolfgang;Borri, Paola
通讯作者:
Borri, Paola
影响因子:
3.7
作者:
P. Borri;V. Cesari;W. Langbein
通讯作者:
W. Langbein
影响因子:
2.5
作者:
V. Cesari;P. Borri;M. Rossetti;A. Fiore;W. Langbein
通讯作者:
W. Langbein