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

被引：2

作者：

Jorge, PAS ^{[1
]}

Mayeh, M ^{[1
]}

Benrashid, R ^{[1
]}

Caldas, P ^{[1
]}

Santos, JL ^{[1
]}

Farahi, F ^{[1
]}

机构：

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

来源：

17th International Conference on Optical Fibre Sensors, Pts 1 and 2 | 2005年 / 5855卷

关键词：

quantum-dots; luminescence; optical chemical sensors; temperature;

D O I：

10.1117/12.623392

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

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. Additionally, it is demonstrated that self-referenced temperature measurements in multiple points could be performed using reflection or transmission based optical fiber configurations.

引用

页码：42 / 45

页数：4

共 5 条

[1]

LIAO SC, 1997, IEEE T BIOMEDICAL EN, V44, P1144

[2] Optical sensing with quantum dots [J].

Murphy, CJ .

ANALYTICAL CHEMISTRY, 2002, 74 (19) :520A-526A

[3] Luminescent optical sensors [J].

Orellana, G .

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2004, 379 (03) :344-346

[4] Application of luminescent nanocrystals as labels for biological molecules [J].

Riegler, J ;

Nann, T .

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2004, 379 (7-8) :913-919

[5] Quantum-dot optical temperature probes [J].

Walker, GW ;

Sundar, VC ;

Rudzinski, CM ;

Wun, AW ;

Bawendi, MG ;

Nocera, DG .

APPLIED PHYSICS LETTERS, 2003, 83 (17) :3555-3557

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