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arXiv 1301.5652physics.opticsquant-ph
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单发射极纳米激光器的量子理论分析结果。II

Analytical results from the quantum theory of a single-emitter nanolaser. II

Nikolay V. Larionov, Mikhail I. Kolobov

摘要:

利用Heisenberg-Langevin和密度算符两种等价方法,研究了非相干泵浦的单二能级系统与有限精细度单腔模相互作用的纳米激光的性质.我们表明,在良好的腔制度的情况下,海森伯-朗之万方法提供的线宽,振幅起伏谱,和腔内曼德尔Q参数的分析结果。在坏腔制度,我们估计的频率在弛豫振荡的峰值出现。借助用相干态表示的密度算符主方程,我们得到了Glauber-Sudarshan P函数的近似表达式。这种解决方案可以用于良好的腔制度的情况下,并允许我们更详细地调查的nanolaser的无阈值行为。所有这两种方法是在一个非常好的协议与对方和数值模拟。

英文摘要:

Using two equivalent approaches, Heisenberg-Langevin and density operator, we investigate the properties of nanolaser: an incoherently pumped single two-level system interacting with a single-cavity mode of finite finesse. We show that in the case of good-cavity regime the Heisenberg-Langevin approach provides the analytical results for linewidth, amplitude fluctuation spectrum, and intracavity Mandel Q-parameter. In the bad-cavity regime we estimate the frequency at which the peak of relaxation oscillations appears. With the help of the master equation for density operator written in terms of coherent states we obtain approximated expression for Glauber-Sudarshan P function. This solution can be used in the case of good-cavity regime and allows us to investigate in more detail the thresholdless behaviour of the nanolaser. All two approaches are in a very good agreement with each other and numerical simulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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