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Proceedings Paper

An integrated optical disk resonator for sensing applications
Author(s): Aaron Schweinsberg; Sandrine Hocdé; Nick N. Lepeshkin; Robert W. Boyd; Christopher Chase; Julie E. Fajardo
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Paper Abstract

We describe the design and fabrication of an integrated optical disk resonator and demonstrate its ability to perform as an environmental sensor. The device consists of a 500 micron radius disk side-coupled to a straight bus waveguide, fabricated in silicon oxy-nitride (SiON). The guiding layer has a refractive index of 1.8 and is 350 nm thick. Since the devices require few processing steps and can be fabricated using the well-established techniques of plasma enhanced chemical vapor deposition and optical lithography, they are reasonably easy to produce. By monitoring the transmission of 1550 nm light through the resonators, we can measure changes in the refractive index at the surface. We determine a sensitivity of 1.0 x 10-5 to changes in the surface index with experiments using sucrose solutions of varying concentrations.

Paper Details

Date Published: 10 November 2005
PDF: 7 pages
Proc. SPIE 6005, Photonic Crystals and Photonic Crystal Fibers for Sensing Applications, 60050L (10 November 2005); doi: 10.1117/12.630685
Show Author Affiliations
Aaron Schweinsberg, The Institute of Optics, Univ. of Rochester (United States)
Sandrine Hocdé, The Institute of Optics, Univ. of Rochester (United States)
Nick N. Lepeshkin, The Institute of Optics, Univ. of Rochester (United States)
San Francisco State Univ. (United States)
Robert W. Boyd, The Institute of Optics, Univ. of Rochester (United States)
Christopher Chase, Agave BioSystems (United States)
Julie E. Fajardo, Agave BioSystems (United States)


Published in SPIE Proceedings Vol. 6005:
Photonic Crystals and Photonic Crystal Fibers for Sensing Applications
Henry H. Du, Editor(s)

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