Quantum dots as self-referenced optical fibre temperature probes for luminescent chemical sensors

被引：53

作者：

Jorge, P. A. S. ^{[1
]}

Mayeh, M.

Benrashid, R.

Caldas, P.

Santos, J. L.

Farahi, F.

机构：

[1] Univ N Carolina, Dept Phys & Opt Sci, Charlotte, NC 28223 USA

[2] INESC, Unidade Optoelect & Sistemas Elect, P-4169007 Oporto, Portugal

[3] Univ Porto, Fac Ciencias, Dept Fis, P-4169007 Oporto, Portugal

[4] Inst Politecn Viana Castelo, Escola Super Tecnol & Gestao, P-4901908 Viana do Castelo, Portugal

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2006年 / 17卷 / 05期

关键词：

quantum dots; luminescence; optical chemical sensors; temperature;

D O I：

10.1088/0957-0233/17/5/S16

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. A resolution of 0.3 degrees C was achieved. In addition, it is demonstrated that self-referenced temperature measurements at multiple points could be performed using reflection or transmission based optical fibre configurations.

引用

页码：1032 / 1038

页数：7

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