On-chip Gas Detection in Silicon Optical Microcavities

Jacob T. Robinson; Long Chen; Michal Lipson

Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
OSA Technical Digest (CD) (Optica Publishing Group, 2008),
paper CMJJ6

On-chip Gas Detection in Silicon Optical Microcavities

Jacob T. Robinson, Long Chen, and Michal Lipson

Conference on Lasers and Electro-Optics 2008

San Jose, California United States
4–9 May 2008
ISBN: 978-1-55752-859-9

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Fiber-, Waveguide- and Cavity-Based Sensing II (CMJJ)

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J. T. Robinson, L. Chen, and M. Lipson, "On-chip Gas Detection in Silicon Optical Microcavities," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optica Publishing Group, 2008), paper CMJJ6.

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Abstract

We detect acetylene gas on a silicon chip using photonic microcavities and a chip-scale gas cell. We measure refractive index differences as small as 10⁻⁴ between air and acetylene at varying pressures in the near-IR.

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