文档介绍：Hindawi Publishing Corporation
Journal of Sensors
Volume 2009, Article ID 979761, 12 pages
doi:
Review Article
Surface Plasmon Resonance-Based Fiber Optic Sensors:
Principle, Probe Designs, and Some Applications
B. D. Gupta and R. K. Verma
Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India
Correspondence should be addressed to B. D. Gupta, ******@..in
Received 26 January 2009; Accepted 2 June 2009
mended by Christos Riziotis
Surface plasmon resonance technique in collaboration with optical fiber technology has brought tremendous advancements in
sensing of various physical, chemical, and biochemical parameters. In this review article, we present the principle of SPR technique
for sensing and various designs of the fiber optic SPR probe reported for the enhancement of the sensitivity of the sensor. In
addition, we present few examples of the surface plasmon resonance- (SPR-) based fiber optic sensors. The present review may
provide researchers valuable information regarding fiber optic SPR sensors and encourage them to take this area for further
research and development.
Copyright © 2009 B. D. Gupta and R. K. Verma. This is an open access article distributed under the mons
Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is
properly cited.
1. Introduction resonance parameter. To excite surface plasmons, generally,
a prism is used [2–9]. The prism-based SPR sensing device
Surface plasmon resonance (SPR) is one of the most promis- has a number of ings such as its bulky size and
ing optical techniques that find applications in different the presence of various optical and mechanical (moving)
fields. The first sensing application of SPR technique was parts. Further, the prism-based SPR sensing device cannot
reported in 1983 [1]. Since then, numerous SPR sensing be used for remote sensing application