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Proceedings Paper

Thermally stable hybrid organic/inorganic resonant cavities
Author(s): Hong Seok Choi; Andrea M. Armani
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Paper Abstract

Silica optical microcavities experience linewidth broadening and resonant frequency instability as a result of their high Q factors. One of the causes is the thermo-optic effect or temperature induced changes in refractive index. For many telecommunications and biodetection applications, it is critical to have a stable, temperature independent, resonant frequency. In this research, silica microtoroid resonators are coated with two different polymers: polymethylmethacrylate (PMMA) and polystyrene (PS). The hybrid device has minimal thermal response with proper film thicknesses depending on the polymers because the positive dn/dT of silica is balanced by the negative dn/dT of the polymer. The results follow theoretical predictions based on finite element method simulations.

Paper Details

Date Published: 7 September 2011
PDF: 9 pages
Proc. SPIE 8113, Linear and Nonlinear Optics of Organic Materials XI, 811303 (7 September 2011); doi: 10.1117/12.892443
Show Author Affiliations
Hong Seok Choi, The Univ. of Southern California (United States)
Andrea M. Armani, The Univ. of Southern California (United States)

Published in SPIE Proceedings Vol. 8113:
Linear and Nonlinear Optics of Organic Materials XI
Jean-Michel Nunzi; Rachel Jakubiak; Theodore G. Goodson; Manfred Eich, Editor(s)

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