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Silicides for Infrared Surface Plasmon Resonance Biosensors

Published online by Cambridge University Press:  01 February 2011

Justin Cleary ,
Robert Peale ,
David Shelton ,
Glenn Boreman ,
Richard Soref  and
Walter Buchwald
Justin Cleary
Affiliation:
jcleary@physics.ucf.edu, University of Central Florida, Department of Physics, Orlando, Florida, United States
Robert Peale
Affiliation:
rep@physics.ucf.edu, University of Central Florida, Department of Physics, Orlando, Florida, United States
David Shelton
Affiliation:
dshelton@creol.ucf.edu, University of Central Florida, College of Optics and Photonics, Orlando, Florida, United States
Glenn Boreman
Affiliation:
boreman@creol.ucf.edu, University of Central Florida, College of Optics and Photonics, Orlando, Florida, United States
Richard Soref
Affiliation:
Richard.Soref@hanscom.af.mil, Hanscom AFB, AFRL/RYHC, Lexington, Massachusetts, United States
Walter Buchwald
Affiliation:
Walter.Buchwald@hanscom.af.mil, Hanscom AFB, AFRL/RYHC, Lexington, Massachusetts, United States
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Abstract

Pt-, Pd-, Ni-, and Ti-silicide films on silicon were evaluated as conducting hosts for surface plasmon polaritons (SPP) in proposed long-wave IR (LWIR) attenuated total reflection biosensors. Original LWIR complex permittivity data was collected, from which SPP properties were determined and compared with those for noble metals. LWIR SPPs on silicide films were found to offer enhanced sensitivity to thinner biological entities than when usual metal films are used.

Keywords

Sioptical propertiesbiological
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1133: Symposium AA – Materials for Optical Sensors in Biomedical Applications , 2008 , 1133-AA10-03
Copyright
Copyright © Materials Research Society 2009

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References

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