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Journal of Sensors
Volume 2009, Article ID 979761, 12 pages
http://dx.doi.org/10.1155/2009/979761
Review Article

Surface Plasmon Resonance-Based Fiber Optic Sensors: Principle, Probe Designs, and Some Applications

Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India

Received 26 January 2009; Accepted 2 June 2009

Academic Editor: Christos Riziotis

Copyright © 2009 B. D. Gupta and R. K. Verma. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

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.