Coupled spherical-cavities
Coupled spherical-cavities
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DOI：
10.1063/5.0084815
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发表时间：
2022-12
期刊：
影响因子：
1.6
通讯作者：
Stanislav Kreps;V. Shuvayev;M. Douvidzon;Baheej Bathish;Tom Lenkiewicz Abudi;A. Ghaznavi;Jie Xu;Yang Lin;L. Deych;T. Carmon
中科院分区：
文献类型：
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作者：
Stanislav Kreps;V. Shuvayev;M. Douvidzon;Baheej Bathish;Tom Lenkiewicz Abudi;A. Ghaznavi;Jie Xu;Yang Lin;L. Deych;T. Carmon
本文从理论上和实验上研究了光子分子的光学模式——光耦合球形谐振器簇。与以前的研究不同，我们没有使用茎杆将球体固定在其位置，而是依靠光学镊子来保持所需的结构。耦合谐振器的模式是用锥形光纤激发的，观察到的共振质量因子高达107。利用荧光作图技术，我们观察到具有相似空间和光谱形状的耦合模式家族重复每个自由光谱范围（单个球体相邻共振之间的光谱分离）。实验结果与基于多球Mie理论的数值模拟结果进行了比较。这项工作为开发大型耦合高q球形谐振器阵列打开了大门。
In this work, we study theoretically and experimentally optical modes of photonic molecules—clusters of optically coupled spherical resonators. Unlike previous studies, we do not use stems to hold spheres in their positions relying, instead, on optical tweezers to maintain desired structures. The modes of the coupled resonators are excited using a tapered fiber and are observed as resonances with a quality factor as high as 107. Using the fluorescent mapping technique, we observe families of coupled modes with similar spatial and spectral shapes repeating every free spectral range (a spectral separation between adjacent resonances of individual spheres). Experimental results are compared with the results of numerical simulations based on a multi-sphere Mie theory. This work opens the door for developing large arrays of coupled high-Q spherical resonators.