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Resonant Microcavities Coupled to a Photonic Crystal Waveguide for Multi-channel Biodetection

Published online by Cambridge University Press:  31 January 2011

Elisa Guillermain  and
Philippe M. Fauchet
Elisa Guillermain
Affiliation:
[email protected], University of Rochester, ECE, 505 Computer Studies Building, River Campus, Rochester, New York, 14627, United States, 585-275-1768
Philippe M. Fauchet
Affiliation:
Electrical and Computer Engineering Department, University of Rochester, Rochester, NY 14627USA
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Abstract

Miniaturized and highly sensitive bio-sensors are attractive in various applications, such as medicine or food safety. Photonic crystal (PhC) microcavities present multiple advantages for rapid and accurate label-free optical detection. But their principle of operation (i.e. observation of a peak in transmission) makes their integration in serial arrays difficult. We present in this paper a multi-channel sensor consisting of several resonant PhC microcavities coupled to the same waveguide. The transmission spectrum shows as many dips as there are cavities, and each of the microcavities can act as an independent sensor. Preliminary results show the fabrication and characterization of a double-channel structure with small defects used as a solvent sensor.

Keywords

sensoroptical propertiesSi
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1191: Symposium OO – Materials and Strategies for Lab-on-a-Chip–Biological Analysis, Cell-Material Interfaces and Fluidic Assembly , 2009 , 1191-OO11-06
Copyright
Copyright © Materials Research Society 2009

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