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Proceedings Paper

Self-referenced intensity based optical fiber temperature probes for luminescent chemical sensors using quantum dots
Author(s): P. A. S. Jorge; M. Mayeh; R. Benrashid; P. Caldas; J. L. Santos; F. Farahi
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Paper Abstract

The use of semiconductor nano-particles as temperature probes in luminescence chemical sensing applications is addressed. Temperature changes the intensity, the peak wavelength and the spectral width of the quantum dots luminescent emission in a linear and reversible way. Results are presented that show the feasibility of implementing a self-referenced intensity based sensor to perform temperature measurements independent of the optical power level in the sensing system. Additionally, it is demonstrated that self-referenced temperature measurements in multiple points could be performed using reflection or transmission based optical fiber configurations.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623392
Show Author Affiliations
P. A. S. Jorge, Univ. of North Carolina/Charlotte (United States)
INESC Porto (Portugal)
Univ. do Porto (Portugal)
M. Mayeh, Univ. of North Carolina/Charlotte (United States)
R. Benrashid, Waveguide Solutions, Inc. (United States)
P. Caldas, Univ. do Porto (Portugal)
J. L. Santos, Univ. do Porto (Portugal)
F. Farahi, Univ. of North Carolina/Charlotte (United States)

Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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