Performance Enhancement of Evanescent-field Based Optical Waveguide Bio-sensors Using Metal Under-cladding

Ranjeet Dwivedi; Manoj Kumar; Arun Kumar

doi:10.1364/FIO.2015.JW2A.64

Frontiers in Optics 2015
OSA Technical Digest (online) (Optica Publishing Group, 2015),
paper JW2A.64
•https://doi.org/10.1364/FIO.2015.JW2A.64

Performance Enhancement of Evanescent-field Based Optical Waveguide Bio-sensors Using Metal Under-cladding

Ranjeet Dwivedi, Manoj Kumar, and Arun Kumar

Frontiers in Optics 2015

San Jose, California United States
18–22 October 2015
ISBN: 978-1-943580-03-3

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Poster Session - Wednesday (JW2A)

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R. Dwivedi, M. Kumar, and A. Kumar, "Performance Enhancement of Evanescent-field Based Optical Waveguide Bio-sensors Using Metal Under-cladding," in Frontiers in Optics 2015, OSA Technical Digest (online) (Optica Publishing Group, 2015), paper JW2A.64.

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Abstract

A thin metal under-cladding is shown to significantly enhance the evanescent-field in the cover region of an optical waveguide. Using this, a multimode interference based compact bio-sensor, having very high sensitivity (2500 nm/RIU) is proposed.

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