论文标题
超级纳米射手的量子Langevin方法
Quantum Langevin approach for superradiant nanolasers
论文作者
论文摘要
提出了一种分析求解量子非线性兰格文鸟方程的新方法，并应用于集体效应起着重要作用的超级激光器光谱的计算。我们计算任意泵速率的激光光谱并恢复众所周知的结果，例如跨阈值区域的激光宽度的泵依赖性。我们预测具有较大松弛振荡的超级激光器光谱中的新边带峰以及弱泵速度的激光光谱中的新非线性结构。我们的方法阐明了人口波动在激光线宽，激光频谱结构以及向相干操作的过渡中的重要性。
A new approach for analytically solving quantum nonlinear Langevin equations is proposed and applied to calculations of spectra of superradiant lasers where collective effects play an important role. We calculate lasing spectra for arbitrary pump rates and recover well-known results such as the pump dependence of the laser linewidth across the threshold region. We predict new sideband peaks in the spectrum of superradiant lasers with large relaxation oscillations as well as new nonlinear structures in the lasing spectra for weak pump rates. Our approach sheds new light on the importance of population fluctuations in the narrowing of the laser linewidth, in the structure of the lasing spectrum, and in the transition to coherent operation.
