Coupled spherical-cavities
Document Type
Article
Date of Original Version
12-1-2022
Abstract
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.
Publication Title, e.g., Journal
AIP Advances
Volume
12
Issue
12
Citation/Publisher Attribution
Kreps, Stanislav, Vladimir Shuvayev, Mark Douvidzon, Baheej Bathish, Tom L. Abudi, Amirreza Ghaznavi, Jie Xu, Yang Lin, Lev Deych, and Tal Carmon. "Coupled spherical-cavities." AIP Advances 12, 12 (2022). doi: 10.1063/5.0084815.