Optical lightpipe sensor based on surface plasmon resonance

Shuai Shen; Kyle S. Johnston; Sinclair S. Yee

doi:10.1117/12.245579

5 August 1996 Optical lightpipe sensor based on surface plasmon resonance

Shuai Shen, Kyle S. Johnston, Sinclair S. Yee

Proceedings Volume 2872, Second Pacific Northwest Fiber Optic Sensor Workshop; (1996) https://doi.org/10.1117/12.245579
Event: Pacific Northwest Fiber Optic Sensor Workshop, 1996, Troutdale, OR, United States

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.

Citation Download Citation

Shuai Shen, Kyle S. Johnston, and Sinclair S. Yee "Optical lightpipe sensor based on surface plasmon resonance", Proc. SPIE 2872, Second Pacific Northwest Fiber Optic Sensor Workshop, (5 August 1996); https://doi.org/10.1117/12.245579

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