Microscopic theory of nanostructured laser devices with short-wavelength emission

短波长发射纳米结构激光器件的微观理论

• 批准号: 5403272
• 负责人: Professor Dr. Frank Jahnke
• 金额: --
• 依托单位: Institut für Theoretische Physik (ITP)
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2008-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5403272?language=en
• 关键词: Microscopic; theory; nanostructured; laser; devices

A theory for quantum-dot laser systems will be developed to analyze the properties and to guide the optimization of new Nitride-based laser devices which are the subject of projects I.1 and I.2 of this research group. To understand the interplay of nanostructuring and various electronic interaction processes, the application of microscopic models will be necessary. As a central point, the optical gain in quantum-dot systems will be analyzed in comparison to quantum-well systems which have been extensively studied in the past. Optical properties of single quantum dots, studied experimentally in project I.2, are the basis for these investigations. The interplay of carrier injection, electron dynamics in the quantum-confined states, optical gain, and cavity modes of a realistic laser structure will be analyzed to understand the laser emission properties like input-output characteristics and laser threshold, emission spectrum, and dynamical properties. Both, conventional edge-emitters as well as novel vertical-cavity surface-emitting laser structures will be investigated. The theoretical models will directly incorporate results of projects III.1 and III.2.

本课题组项目I.1和I.2将发展量子点激光系统的理论来分析其特性并指导新型氮基激光器件的优化。为了理解纳米结构与各种电子相互作用过程的相互作用，微观模型的应用将是必要的。本文将以量子点系统的光学增益为中心，与过去广泛研究的量子阱系统进行比较分析。项目I.2中实验研究的单量子点的光学性质是这些研究的基础。本文将分析载流子注入、量子限制态电子动力学、光学增益和实际激光结构的腔模式的相互作用，以了解激光发射特性，如输入输出特性和激光阈值、发射光谱和动力学特性。本文将对传统的边缘激光器和新型的垂直腔面发射激光器结构进行研究。理论模型将直接纳入项目III.1和III.2的成果。