Compact design of a gallium phosphide nanobeam cavity for coupling to diamond germanium-vacancy centers
Compact design of a gallium phosphide nanobeam cavity for coupling to diamond germanium-vacancy centers
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DOI：
10.1364/ome.9.001678
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发表时间：
2019-04
影响因子：
2.8
通讯作者：
Abdulrahman Alajlan;I. Cojocaru;A. Akimov
中科院分区：
文献类型：
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作者：
Abdulrahman Alajlan;I. Cojocaru;A. Akimov
提出了一种与锗空位（GeV）中心相互作用的超高Q/V纳米波束腔的设计。纳米波束腔支持Q/V bbb108模式，透射率超过70%。提出的设计基于一种新的可扩展方法，该方法可以在不损失腔Q/V值和传输的情况下将纳米束腔的占地面积减少50%以上。腔量子电动力学分析表明，在一定的纳米尺度范围内，GeV中心的零声子线跃迁与腔模式之间可以实现强耦合。
A design for an ultrahigh Q/V nanobeam cavity engineered to interact with Germanium-vacancy (GeV) centers is presented. The nanobeam cavity supports a mode with Q/V>108 with transmission over 70%. The proposed design is based on a new scalable approach developed to reduce the footprint of nanobeam cavities by more than 50% without losing the cavity Q/V value and transmission. Cavity quantum electrodynamics analysis reveals that strong coupling between the zero-phonon line transition of GeV centers and the cavity mode can be achieved for a range of nanobeam dimensions.