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Proceedings Paper

Chemical and biological detectors using ultra-high-Q microresonators
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Paper Abstract

Recently, a method for fabricating planar arrays of optical microtoroid resonators with quality factors greater than 500 million was developed. These devices have previously demonstrated Raman and OPO lasing and radiation pressure induced oscillations. When immersed in an aqueous environment, these devices are able to maintain their ultra-high Q factors by operating in the visible wavelength band, enabling very sensitive chemical and biological detection. The fabrication and optical properties of these devices will be described. These devices have performed both chemical and biological detection. Systems which have been detected include D2O in water and a variety of biological molecules. Sensitivity limits will also be discussed.

Paper Details

Date Published: 18 October 2006
PDF: 10 pages
Proc. SPIE 6376, Optomechatronic Micro/Nano Devices and Components II, 637606 (18 October 2006); doi: 10.1117/12.691122
Show Author Affiliations
Andrea M. Armani, California Institute of Technology (United States)
Kerry J. Vahala, California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 6376:
Optomechatronic Micro/Nano Devices and Components II
Yoshitada Katagiri, Editor(s)

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