期刊
PHYSICAL REVIEW LETTERS
卷 101, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.067401
关键词
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资金
- DFG research group
- Forschungszentrum Julich (Germany)
In the rapidly evolving field of quantum-dot-based microcavity lasers the device characterization is of great importance. In this Letter, we study how information can be obtained from the input/output curve by using a microscopic laser theory for the coupled cavity-quantum-dot system. Semiconductor effects such as a nonlinear source term of spontaneous emission, Pauli blocking, and the absence of complete carrier inversion lead to significant deviations from atomic systems. Especially for pulsed excitation, saturation effects have a tremendous impact on the input/output characteristics and render a simple determination of the spontaneous emission coupling beta impossible.
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