驱动场作用下衰变率对量子点——腔耦合系统的非线性激射光谱的影响  

Influence of Decay Rate on Nonlinear Lasing Spectrum of Quantum Dot-cavity Coupled System Under the Driving Field

作　　者：隋欣[1] 吕树臣[1] 杨金宝[1] 

机构地区：[1]哈尔滨师范大学

出　　处：《哈尔滨师范大学自然科学学报》2014年第3期112-117,共6页Natural Science Journal of Harbin Normal University

摘　　要：基于量子点———腔耦合系统模型,运用腔量子电动力学中的全量子理论和数值模拟计算方法,研究在外加驱动场作用下,系统中一些衰变率对腔模场中的粒子数分布和非线性激射光谱的影响.首先分别讨论了在目标量子点与漏腔以及驱动场之间共振和非共振情况下,系统中纯消相、非相干泵浦以及驱动场对粒子数分布的规律,再对非线性激射光谱作出了对比分析.从而进一步为实现稳定、高效、可集成的单量子点激光器的制备提供了有力的理论指导.Based on the quantum dot -cavity coupled system model, the influences of some decay rates of quantum dot or cavity on particle number distribution and nonlinear lasing spectrum of the system under the driving field are studied. Firstly, the influence of pure dephasing, incoherent pumping and driving field are discussed, respectively, on the rule of population distribution in the cases of resonant and non - resonant between the target quantum dot, the leaky cavity and the driving field. And then the nonlinear properties are analyzed comparatively. Thus a powerful theoretical guidance can be provided for preparation of a stable, efficient and integrated single quantum dot laser.

关 键 词：单量子点激光器 外加驱动场 衰变率 激射光谱 

分 类 号：TN248.4[电子电信—物理电子学]