Optical and Quantum Coherence Study of 2D-Material Based Cavity-Enhanced Emitters and Nanolasers

基于二维材料的腔增强发射器和纳米激光器的光学和量子相干性研究

• 批准号: 410408989
• 负责人: Professor Dr. Frank Jahnke
• 金额: --
• 依托单位: Institut für Festkörperphysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/410408989?language=en
• 关键词: Optical; Quantum; Coherence; Study; 2D

The proposed research aims at the understanding of a series of fundamental physics questions related to a) the emerging monolayer semiconductor transition metal dichalcogenides, b) quantum optical properties of light emission from nanoemitters and nanolasers, as well as c) important device physics issues of nanolasers based on such monolayer semiconductors. We will address the suitability of the new active-material platform and promising material choices, the demonstration of laser action in terms of quantum-optical emission properties, and device realizations with improved outcoupling efficiencies. The integrated system of monolayer semiconductors with nanocavities provides an ideal state-of-the-art platform for the proposed study. The team consists of three well qualified, highly complementary groups specializing in microscopic theory of 2D semiconductors interacting with quantized light field (Jahnke group, University of Bremen), fabrication, and characterization of nanolasers (Ning group, Tsinghua University), and quantum optical coherence study of light emission (Reitzenstein group Technische Universität Berlin), respectively. The well-knit Sino-German team is uniquely suited to investigate the important questions raised above in the most comprehensive and integrative manner through an iterative cycle from materials preparation, device fabrication, experimental characterization, and first-principle theoretical prediction and interpretation. From the fundamental science point of view, the expected results can potentially impact our basic understanding of light emission and gain mechanism in 2D monolayer semiconductors, as well as the nature of quantum coherence of nanoemitters, especially the relationship between threshold behavior of the nanolasers and quantum coherence. In this context, we will address the important issue of how to verify laser action in nanocavity lasers with spontaneous emission coupling factors (beta-factor) approaching unity close to the limiting case of a thresholdless laser. This fundamental regime of semiconductor lasers will be explored by comprehensive quantum optical studies on the photon statistics of emission, acting as the most sensitive tool to unambiguously identify the onset of coherent light emission. The joint experimental and theoretical work will aim at a new level of understanding the emission processes of nanolaser by considering the photon-number distribution of emission in addition to input-output and linewidth dependencies. Here, the photon-number distribution gives access to the full photon statistic including higher order photon correlations. This work will be enabled by highly advanced photon-number resolving detectors in the Reitzenstein group. From the technological point of view, the proposed research could lead to a new type of nanophotonic devices for applications in next generation of information technologies, or novel devices in quantum information technologies.

拟议的研究旨在理解与a）与a）新兴单层半导体金属二核苷的相关的一系列基本物理问题，b）纳米emitters和nanolasers的光发射的量子光学特性，以及c）基于此类单层的Nanolasers的重要设备物理学问题。我们将解决新的主动材料平台和承诺物质选择的适用性，在量子 - 光发射属性方面的激光作用演示以及具有提高的超级耦合效率的设备现实。具有纳米腔的单层半导体的集成系统为拟议研究提供了理想的最新平台。该团队由三个合格的，高度互补的小组组成，专门研究2D半导体的显微镜理论，与量化光场相互作用（Jahnke Group，布雷蒙大学），纳米纳拉氏菌（Ning Group，Tsinghua University）的制造和表征（Tsinghua University），以及量子光学的相干研究，以及量子的光学研究。熟练的中华人队非常适合通过材料制备，设备制造，实验表征以及第一原则的理论预测和解释，以最全面和最整合的方式研究上述重要的问题。从基本科学的角度来看，预期的结果可能会影响我们对2D单层半导体中的光发射和增益机制的基本理解，以及纳米仪的量子相干性的性质，尤其是纳米层的阈值行为与量子相干性之间的关系。在这种情况下，我们将解决如何在纳米腔激光器中验证具有赞助排放耦合因子（beta-factor）的激光动作的重要问题，该问题接近接近无阈值激光限制情况的单位。半导体激光器的这种基本状态将通过有关发射光子统计量的全面量子光学研究来探索，这是明确确定相干光发射的最敏感工具。联合实验和理论工作将通过考虑除输入输出和线宽依赖性外发射的光子数分布，以新的水平来理解纳米剂的发射过程。在这里，光子数分布可访问完整的光子统计数据，包括高阶光子相关性。这项工作将由Reitzenstein组高度先进的光子数分辨率检测器启用。从技术的角度来看，拟议的研究可能会导致一种新型的纳米光子设备，用于下一代信息技术或量子信息技术中的新型设备。