Strong light-matter coupling in the presence of lasing
Strong light-matter coupling in the presence of lasing
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DOI：
10.1103/physreva.96.023806
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发表时间：
2016-06
影响因子：
2.9
通讯作者：
C. Gies;F. Gericke;P. Gartner;S. Holzinger;C. Hopfmann;T. Heindel;J. Wolters;C. Schneider;M. Florian;F. Jahnke;S. Hofling;M. Kamp;S. Reitzenstein
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文献类型：
--
作者：
C. Gies;F. Gericke;P. Gartner;S. Holzinger;C. Hopfmann;T. Heindel;J. Wolters;C. Schneider;M. Florian;F. Jahnke;S. Hofling;M. Kamp;S. Reitzenstein
强光-物质耦合的区域通常与弱激发相关联。随着目前实现的腔QED系统，强耦合可能会持续，即使在升高的激发水平足以跨越阈值激光。在受激辐射的存在下，发射光谱中的真空拉比双重峰被修改，建立的强耦合判据不再适用。我们给出了强耦合的一般判据和相应的发射谱，其中包括较高的Jaynes-Cummings态的影响。作为驱动耗散Jaynes-Cummings模型的一种特殊实现，在少发射极量子点微柱激光器的理论和实验比较中证明了该方法的适用性。此外，我们解决的问题，如果和参数真正的单发射激光可以实现，并提供证据的强耦合和激光在我们的系统中存在的背景发射贡献的共存。
The regime of strong light-matter coupling is typically associated with weak excitation. With current realizations of cavity-QED systems, strong coupling may persevere even at elevated excitation levels sufficient to cross the threshold to lasing. In the presence of stimulated emission, the vacuum-Rabi doublet in the emission spectrum is modified and the established criterion for strong coupling no longer applies. We provide a generalized criterion for strong coupling and the corresponding emission spectrum, which includes the influence of higher Jaynes-Cummings states. The applicability is demonstrated in a theory-experiment comparison of a few-emitter quantum-dot--micropillar laser as a particular realization of the driven dissipative Jaynes-Cummings model. Furthermore, we address the question if and for which parameters true single-emitter lasing can be achieved, and provide evidence for the coexistence of strong coupling and lasing in our system in the presence of background emitter contributions.