pH Sensing With Whispering-Gallery Hollow-Bottle Microresonators

Razvan-Ionut Stoian; Barry K. Lavine; A. T. Rosenberger

doi:10.1364/LS.2014.LTh3I.4

Frontiers in Optics 2014
OSA Technical Digest (online) (Optica Publishing Group, 2014),
paper LTh3I.4
•https://doi.org/10.1364/LS.2014.LTh3I.4

pH Sensing With Whispering-Gallery Hollow-Bottle Microresonators

Razvan-Ionut Stoian, Barry K. Lavine, and A. T. Rosenberger

Laser Science 2014

Tucson, Arizona United States
19–23 October 2014
ISBN: 1-55752-286-3

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Chemical and Biological Sensing III (LTh3I)

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R. Stoian, B. K. Lavine, and A. T. Rosenberger, "pH Sensing With Whispering-Gallery Hollow-Bottle Microresonators," in Frontiers in Optics 2014, OSA Technical Digest (online) (Optica Publishing Group, 2014), paper LTh3I.4.

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Abstract

A hollow-bottle microresonator is used to detect changes in the pH of an internal solution. The refractive index of a swellable polymer coating changes with pH, shifting frequencies of modes with internal evanescent fields.

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