AI Article Synopsis
- The method discussed enables the creation of independent whispering-gallery-mode microresonators and highlights the spectral tuning of photonic molecules made from coupled resonators with varying designs and materials.
- The research focuses on direct coupling through evanescent fields between free-standing silica microtoroids and microspheres and polymer-coated silica microtoroids placed on a chip.
- Key findings include successful thermal tuning of resonance modes for optimal spectral overlap, the observation of mode splitting due to direct coupling, and the influence of the distance between resonators on the resulting splitting spectra.
Article Abstract
We describe a method that enables free-standing whispering-gallery-mode microresonators, and report spectral tuning of photonic molecules formed by coupled free and on-chip resonators with different geometries and materials. We study direct coupling via evanescent fields of free silica microtoroids and microspheres with on-chip polymer coated silica microtoroids. We demonstrate thermal tuning of resonance modes to achieve maximal spectral overlap, mode splitting induced by direct coupling, and the effects of distance between the resonators on the splitting spectra.
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| http://dx.doi.org/10.1364/OL.37.003435 | DOI Listing |
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