论文标题
高$β$银色涂层INP的金属纳米剂中的量子波动和线形异常
Quantum fluctuations and lineshape anomaly in a high-$β$ silver-coated InP-based metallic nanolaser
论文作者
论文摘要
金属纳米腔激光器为更小的集成光源提供了重要的技术进步。它们可以访问广泛尚未开发的激光物理学，在这种物理学中，在接近具有接近完美的自发性发射耦合因子$β$的设备时，不同操作机制（如热或连贯的光发射）之间的区别变得越来越具有挑战性。实际上，当输入输出特性在$β= 1 $纳米射手时似乎无阈值时，必须使用量子光学研究来揭示纳米震体强度波动行为的相干发射的过渡。在这里，我们通过表明刺激的发射会导致线性异常表现为从洛伦兹（Lorentzian）到发射线宽的高斯组件的过渡，从而确定了高分子$β$激光器的激光操作的新指标，从而导致线性异常。
Metallic nanocavity lasers provide important technological advancement towards even smaller integrable light sources. They give access to widely unexplored lasing physics in which the distinction between different operational regimes, like those of thermal or a coherent light emission, becomes increasingly challenging upon approaching a device with a near-perfect spontaneous-emission coupling factor $β$. In fact, quantum-optical studies have to be employed to reveal a transition to coherent emission in the intensity fluctuation behavior of nanolasers when the input-output characteristic appears thresholdless for $β= 1$ nanolasers. Here, we identify a new indicator for lasing operation in high-$β$ lasers by showing that stimulated emission can give rise to a lineshape anomaly manifesting as a transition from a Lorentzian to a Gaussian component in the emission linewidth that dominates the spectrum above the lasing threshold.
