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Fiber-Coupled Microcavity Probe for in Vivo Near-Field Sensing

Authors:
Zachary Ballard
Nichaluk Leartprapun
Jimmy Xu

Keywords: Biosensor; Microprobe; Microcavity

Abstract:
We report on a new design for near-field sensing based on a fiber-coupled microcavity. The device operates on the bases of sensing in the evanescent near-field zone and offers a robust portable probe solution for in-vivo sensing and diagnostics. In preliminary tests, the first generation device has already demonstrated sensitivity in the range of 10-3 and 10-4 refractive index units (RIU) and 20 nm/RIU. Using this device, we have also observed, through spectral shift, the binding of a self-assembled monolayer (~ 5 Ǻ thickness) of amino-silane.

Pages: 107 to 111

Copyright: Copyright (c) IARIA, 2013

Publication date: August 25, 2013

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-61208-297-4

Location: Barcelona, Spain

Dates: from August 25, 2013 to August 31, 2013