相干与非相干共振发射:一种易于辨别和测量的实验方法

S. Ceccherini, M. Colocci, M. Gurioli, F. Bogani
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引用次数: 0

摘要

从共振激发的材料系统发出的辐射的相干和非相干成分的区分在实验上是困难的,特别是当超短光脉冲用于激发时。我们提出了一种实验程序,可以方便地测量这两种成分。该方法是完全通用的,适用于任何类型的物理系统;用半导体量子阱中激子的共振发射证明了其可行性。
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Coherent versus incoherent resonant emission: an experimental method for easy discrimination and measurement
The distinction between the coherent and the incoherent component of the radiation emitted from resonantly excited material systems is difficult experimentally, particularly when ultra-short optical pulses are used for excitation. We propose an experimental procedure allowing an easy measurement of the two components. The method is completely general and applicable to any kind of physical system; its feasibility is demonstrated on the resonant emission from excitons in a semiconductor quantum well.
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