Li Linsen, Choi Hyeongrak, Heuck Mikkel, Englund Dirk
Opt Express. 2021 May 24;29(11):16469-16476. doi: 10.1364/OE.419773.
We propose a field-based design for dielectric antennas to interface diamond color centers in dielectric membranes with a Gaussian propagating far field. This antenna design enables an efficient spin-photon interface with a Purcell factor exceeding 400 and a 93% mode overlap to a 0.4 numerical aperture far-field Gaussian mode. The antenna design with the back reflector is robust to fabrication imperfections, such as variations in the dimensions of the dielectric perturbations and the emitter dipole location. The field-based dielectric antenna design provides an efficient free-space interface for closely packed arrays of quantum memories for multiplexed quantum repeaters, arrayed quantum sensors, and modular quantum computers.
我们提出了一种基于场的介质天线设计，用于将介质膜中的金刚石色心与高斯传播远场相连接。这种天线设计能够实现高效的自旋-光子界面，珀塞尔因子超过400，与数值孔径为0.4的远场高斯模式的模式重叠率达到93%。带有背反射器的天线设计对于制造缺陷具有鲁棒性，例如介质微扰尺寸和发射极偶极子位置的变化。基于场的介质天线设计为用于复用量子中继器、阵列量子传感器和模块化量子计算机的紧密排列的量子存储器阵列提供了高效的自由空间界面。
