论文标题
基于半导体量子点的单模光纤耦合单光子源的数值优化
Numerical optimization of single-mode fiber-coupled single-photon sources based on semiconductor quantum dots
论文作者
论文摘要
我们进行扩展的数值研究，以最大化纤维耦合的量子点单光子源的总体光子耦合效率，该量子在近红外和电信状态下发出。使用有限元方法，我们根据微粒子，微透镜，圆形的bragg s腔和微柱的量子点单光子源优化了量子点单光子源的光子提取和纤维耦合效率。考虑整个系统的数值模拟，这些系统由量子点源本身，耦合晶状体和单模光纤产生总体光子偶联效率的效率高达83％。我们的工作提供了不同纤维耦合的单光子源的客观可比性，并提出了优化的几何形状，以实现实用且高效的量子点单光子源。
We perform extended numerical studies to maximize the overall photon coupling efficiency of fiber-coupled quantum dot single-photon sources emitting in the near-infrared and telecom regime. Using the finite element method, we optimize the photon extraction and fiber-coupling efficiency of quantum dot single-photon sources based on micromesas, microlenses, circular Bragg grating cavities and micropillars. The numerical simulations which consider the entire system consisting of the quantum dot source itself, the coupling lens, and the single-mode fiber yield overall photon coupling efficiencies of up to 83%. Our work provides objectified comparability of different fiber-coupled single-photon sources and proposes optimized geometries for the realization of practical and highly efficient quantum dot single-photon sources.
