Fundamental Investigations of Nanolaser Physics: Statistical Properties, Thermal Stability, and Temporal Dynamics of Light Emission

纳米激光物理学的基础研究：光发射的统计特性、热稳定性和时间动力学尺寸小于其工作波长的纳米级激光器具有提供前所未有的通信、传感和照明功能的潜力，因为它们的占地面积和能量预算令人难以置信。然而，人们对纳米激光光发射的基本性质，特别是其统计性质知之甚少。这项研究的目的是根据一系列严格的测量建立描述纳米激光器动力学的理论模型，并演示在室温下工作的电子控制纳米激光器。这些纳米级激光将在量子通信和计算网络中找到应用，以实现安全通信，并对地球气候等复杂系统进行建模。此外，纳米激光具有在医疗保健应用中以极小的体积传感生化制剂的潜力。拟议的努力的总体意义是进一步推进纳米级激光的基础知识。由金属、绝缘和半导体材料形成的纳米激光器具有温度相关的特性。这些激光器的热稳定性与它们的发射特性有着千丝万缕的联系。此外，光发射和热特性通常随时间演变。因此，一个描述纳米激光器动力学的理论模型，以及它们的统计和热特性将被开发出来。为了描述纳米激光器的亚阈值行为，我们将研究量子耗散系统中的珀塞尔效应。该项目的实验目标包括设计和分析在不同温度下为半导体电信波长纳米激光器量身定做的二阶和/或更高阶相干度测量。电泵浦同轴纳米激光器将用于室温连续波运转，并对其进行了表征。这些实验的结果将导致构建更准确的纳米激光动力学模型。

Fundamental Investigations of Nanolaser Physics: Statistical Properties, Thermal Stability, and Temporal Dynamics of Light EmissionNanoscale lasers, with dimensions smaller than their operating wavelength, have the potential to offer unprecedented communication, sensing, and illumination functionalities, due to their incredibly small footprint and energy budget. However, the fundamental properties of nanolaser light emission are poorly understood, in particular their statistical properties. The objectives of this research are to develop a theoretical model describing the dynamics of nanolasers based on a rigorous set of measurements and to demonstrate electronically controlled nanolasers operating at room temperature. These nanoscale lasers would find applications in quantum communications and computation networks for secure communications and for modeling of complex systems like the Earth's climate. In addition, nanolasers have the potential for sensing bio-chemical agents in extremely small volumes for healthcare applications.The overall significance of the proposed effort is to further advance the fundamental knowledge of nanoscale lasers. Nanolasers, which are formed from metallic, insulating, and semi-conducting materials, have temperature-dependent properties. The thermal stability of these lasers is intricately coupled to their emission properties. Additionally, the light emission and thermal properties generally evolve in time. Therefore, a theoretical model describing the dynamics of nanolasers, coupled with their statistical and thermal characteristics will be developed. The Purcell effect in quantum dissipative systems will be investigated to describe the sub-threshold behavior in nanolasers. Experimental objectives of this project include the design and analysis of second and/or higher order coherence measurements tailored for semiconductor telecom wavelength nanolasers at various temperatures. Electrically pumped coaxial nanolasers for continuous wave operation at room temperature will be fabricated and characterized. Results of these experiments will lead to construct more accurate models of nanolaser dynamics.