Coherent state of Wannier-Mott excitons: Transformations of nonlinear spatial structures

被引：0
|
作者：
Balkarey, YI
Cohen, AS
Elinson, MI
Evtikhov, MG
Posvyanskii, VS
机构：
来源：
PHYSICS AND SIMULATION OF OPTOELECTRONIC DEVICES V | 1997年 / 2994卷
关键词：
excitons; instabilities; collective excitations; nonlinear structures; bistability; active media;
D O I：
10.1117/12.275636
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Nonlinear structures of a coherent state of Wannier-Mott excitons sustained by resonant optical pumping in semiconductors are investigated both theoretically and numerically. The structures can originate from both instability with respect to spatial periodic stratification and finite amplitude disturbances, when initial homogeneous state is stable with respect to the small fluctuations. Spectrum of collective excitations and stability of the structures are discussed. Transformations of structures are demonstrated.
引用
收藏
页码：851 / 862
页数：12
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