AI 中文总结
本研究探讨多量子阱纳米线激光器的自发发射因子动力学，推导其计算方法，分析相关参数依赖关系，为激光器阈值及运行特性研究提供支撑。
AI 中文摘要
自发发射因子（常称为β因子）是描述量子阱激光器的重要物理量，既影响阈值功率，也影响光强-光强（L-L）曲线的整体形状。过往对多量子阱（MQW）纳米线激光器器件的建模研究，通常假设β因子为可估算或事后拟合的常数参数。但β因子可由半导体量子阱中价带与导带间的跃迁，结合腔模信息推导得出。本研究探讨MQW纳米线激光器β因子的动力学特性，展示其计算方法；还分析自发发射率与β因子对载流子密度、量子阱厚度及组分的依赖关系，并讨论其对激光器阈值与运行的影响。
英文摘要
The spontaneous emission factor - often known as the \b{eta} factor - is an important quantity in the description of quantum well lasers, influencing both the threshold power as well as the general shape of the light in-light out (L-L) curve. Past work on modelling multiple quantum well (MQW) nanowire laser devices has typically assumed that the \b{eta} factor is a constant parameter that can either be estimated or fit in a post-hoc manner. However, the \b{eta} factor can be derived from the transitions between valence and conduction bands in semiconductor quantum wells, together with knowledge of the cavity modes. Here we investigate the dynamic nature of the \b{eta} factor for MQW nanowire lasers, and show how it can be computed. We also examine the dependence of the spontaneous emission rate and spontaneous emission factor \b{eta} on the charge carrier density, quantum well thickness, and composition, and discuss the impact on laser threshold and operation.
Comments9 pages, PREPRINT
