Comparison of the coherence properties of superradiance and laser emission in semiconductor structures

被引：1
|
作者：
Vasil'ev, P. P. [1 ,2 ]
Penty, R. V. [2 ]
White, I. H. [2 ]
机构：
[1] Russian Acad Sci, PN Lebedev Phys Inst, Moscow 119991, Russia
[2] Univ Cambridge, Dept Elect Engn, Ctr Photon Syst, Cambridge CB3 0FA, England
来源：
QUANTUM ELECTRONICS | 2012年 / 42卷 / 12期
关键词：
superradiance; coherence; semiconductor laser structures; Young's experiment; interference pattern; BOSE-EINSTEIN CONDENSATION; GAS;
D O I：
10.1070/QE2012v042n12ABEH015031
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 coherence properties of a transient electron - hole state developing during superradiance emission in semiconductor laser structures have been studied experimentally using a Michelson interferometer and Young's classic double-slit configuration. The results demonstrate that, in the lasers studied, the first-order correlation function, which quantifies spatial coherence, approaches unity for superradiant emission and is 0.2 - 0.5 for laser emission. The supercoherence is due to long-range ordering upon the superradiant phase transition.
引用
收藏
页码：1081 / 1086
页数：6
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