截断金属介质全向反射镜：95%效率的基高斯模单光子收集
The Truncated Metallo-dielectric Omnidirectional Reflector: Collecting Single Photons in the Fundamental Gaussian Mode with 95% Efficiency
摘要：
我们提出了一种新颖的天线结构，它以前所未有的效率将来自单个发射器的单个光子漏斗到低发散的基本高斯模式中。我们的器件依赖于创造一个全向光子带隙的概念，以抑制不必要的大角度发射，并提高小角度缺陷导模发射。新的光子收集策略直观地说明，严格验证和优化，通过实施一个有效的体的旋转有限差分时域方法的面内偶极子发射器。我们研究了一些天线设计，以涵盖各种边界条件所造成的制造工艺或材料的限制，并从理论上证明，收集效率到基本高斯模式超过95%是可以实现的。我们的天线是宽带的，对制造缺陷不敏感，并与各种固态发射器兼容，如有机分子，量子点和金刚石缺陷中心。来自单个发射器的单向和低发散高斯模式发射可以实现各种光子量子计算机架构以及高效的光-物质界面。
英文摘要：
We propose a novel antenna structure which funnels single photons from a single emitter with unprecedented efficiency into a low-divergence fundamental Gaussian mode. Our device relies on the concept of creating an omnidirectional photonic bandgap to inhibit unwanted large-angle emission and to enhance small-angle defect-guided-mode emission. The new photon collection strategy is intuitively illustrated, rigorously verified and optimized by implementing an efficient body-of-revolution finite-difference time-domain method for in-plane dipole emitters. We investigate a few antenna designs to cover various boundary conditions posed by fabrication processes or material restrictions and theoretically demonstrate that collection efficiencies into the fundamental Gaussian mode exceeding 95% are achievable. Our antennas are broadband, insensitive to fabrication imperfections and compatible with a variety of solid-state emitters such as organic molecules, quantum dots and defect centers in diamond. Unidirectional and low-divergence Gaussian-mode emission from a single emitter may enable the realization of a variety of photonic quantum computer architectures as well as highly efficient light-matter interfaces.
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