High quality factor silica microspheres functionalized with self-assembled nanomaterials

With extremely low material absorption and exceptional surface smoothness, silica-based optical resonators can achieve extremely high cavity quality (Q) factors. However, the intrinsic material limitations of silica (e.g., lack of second order nonlinearity) may limit the potential applications of si...

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Bibliographic Details
Published in:Optics express 2013-09, Vol.21 (18), p.20601-20610
Main Authors: Kandas, Ishac, Zhang, Baigang, Daengngam, Chalongrat, Ashry, Islam, Jao, Chih-Yu, Peng, Bo, Ozdemir, Sahin K, Robinson, Hans D, Heflin, James R, Yang, Lan, Xu, Yong
Format: Article
Language:English
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Summary:With extremely low material absorption and exceptional surface smoothness, silica-based optical resonators can achieve extremely high cavity quality (Q) factors. However, the intrinsic material limitations of silica (e.g., lack of second order nonlinearity) may limit the potential applications of silica-based high Q resonators. Here we report some results in utilizing layer-by-layer self-assembly to functionalize silica microspheres with nonlinear and plasmonic nanomaterials while maintaining Q factors as high as 10(7). We compare experimentally measured Q factors with theoretical estimates, and find good agreement.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.21.020601