Femtosecond superradiance in semiconductor lasers: anomalous internal second-harmonic generation

被引：1
|
作者：
Vasil'ev, P. P. [1 ,2 ]
Putilin, A. N. [1 ]
Sergeev, A. B. [1 ]
机构：
[1] Russian Acad Sci, PN Lebedev Phys Inst, Leninsky Prosp 53, Moscow 119991, Russia
[2] Univ Cambridge, Ctr Photon Syst, 9 JJ Thomson Ave, Cambridge CB3 0FA, England
来源：
QUANTUM ELECTRONICS | 2016年 / 46卷 / 10期
关键词：
superradiance; femtosecond pulses; second-harmonic generation; HARMONIC-GENERATION; ROOM-TEMPERATURE; GAAS;
D O I：
10.1070/QEL16197
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The emission of anomalously bright blue light under internal doubling of the frequency of femtosecond superradiance pulses in the active medium of semiconductor GaAs/AlGaAs laser heterostructures has been experimentally found. The efficiency of the internal second-harmonic generation is an order of magnitude higher than in the conventional lasing regime. This effect is due to the formation of a transient ordered state of electrons and holes under superradiance, occurrence of dynamic coherent population lattices, and periodic modulation of the nonlinear susceptibility of the medium.
引用
收藏
页码：888 / 890
页数：3
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