Polymer coatings endow ultra-high-Q dielectric resonators with nonlinear properties, impacting numerous applications. However, minimal research combining microcavities with polymer-nanoparticle coatings to tune or tailor the optical properties of the system has been performed. One challenge is maintaining the high performance of the optical device while in the presence of nanoparticles. In the present work, a toroidal microcavity is coated with a polymethylmethacrylate thin film containing thiol-functionalized gold nanoparticles. The thiol-functionalization ensures that the nanoparticles are uniformly distributed throughout the film. The quality factors of these devices are above 5 × 106 and are in good agreement with the theoretical predictions.
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2 January 2012
Research Article|
January 04 2012
Optical microcavities with a thiol-functionalized gold nanoparticle polymer thin film coating
Ce Shi;
Ce Shi
1Mork Family Department of Chemical Engineering and Materials Science,
University of Southern California
, 3651 Watt Way, Los Angeles, California 90089, USA
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Hong Seok Choi;
Hong Seok Choi
1Mork Family Department of Chemical Engineering and Materials Science,
University of Southern California
, 3651 Watt Way, Los Angeles, California 90089, USA
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Andrea M. Armani
Andrea M. Armani
a)
1Mork Family Department of Chemical Engineering and Materials Science,
University of Southern California
, 3651 Watt Way, Los Angeles, California 90089, USA
2Ming Hsieh Department of Electrical Engineering-Electrophysics,
University of Southern California
, 3651 Watt Way, Los Angeles, California 90089, USA
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a)
Author to whom correspondence should be addressed. Electronic mail: armani@usc.edu.
Appl. Phys. Lett. 100, 013305 (2012)
Article history
Received:
July 14 2011
Accepted:
December 12 2011
Citation
Ce Shi, Hong Seok Choi, Andrea M. Armani; Optical microcavities with a thiol-functionalized gold nanoparticle polymer thin film coating. Appl. Phys. Lett. 2 January 2012; 100 (1): 013305. https://doi.org/10.1063/1.3673872
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