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Proceedings Paper

Optical lightpipe sensor based on surface plasmon resonance
Author(s): Shuai Shen; Kyle S. Johnston; Sinclair S. Yee
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Paper Abstract

In this paper, a novel optical sensor using surface plasmon resonance in a symmetrical planar lightpipe is introduced. The new design utilizes a microscope slide with beveled ends as the sensor substrate. Collimated TM polarized white light is used to interrogate the sensing surface at a single angle. Preliminary experimental results for glycerol solutions from 0.6%wt to 16%wt demonstrate a concentration sensitivity of 3.4 multiplied by 10-4 by weight. The corresponding refractive index sensitivity is estimated as 4 by 10-5.

Paper Details

Date Published: 5 August 1996
PDF: 7 pages
Proc. SPIE 2872, Second Pacific Northwest Fiber Optic Sensor Workshop, (5 August 1996); doi: 10.1117/12.245579
Show Author Affiliations
Shuai Shen, Univ. of Washington (United States)
Kyle S. Johnston, Univ. of Washington (United States)
Sinclair S. Yee, Univ. of Washington (United States)


Published in SPIE Proceedings Vol. 2872:
Second Pacific Northwest Fiber Optic Sensor Workshop
Eric Udd, Editor(s)

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