Self-referenced intensity based optical fiber temperature probes for luminescent chemical sensors using quantum dots

P. A. S. Jorge; M. Mayeh; R. Benrashid; P. Caldas; J. L. Santos; F. Farahi

doi:10.1117/12.623392

23 May 2005 Self-referenced intensity based optical fiber temperature probes for luminescent chemical sensors using quantum dots

P. A. S. Jorge, M. Mayeh, R. Benrashid, P. Caldas, J. L. Santos, F. Farahi

Author Affiliations +

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623392
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

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.

Citation Download Citation

P. A. S. Jorge, M. Mayeh, R. Benrashid, P. Caldas, J. L. Santos, and F. Farahi "Self-referenced intensity based optical fiber temperature probes for luminescent chemical sensors using quantum dots", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623392

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