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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4635–4638

Optical temperature sensing based on the near-infrared emissions from Nd3+/Yb3+ codoped CaWO4

Wei Xu, Qiutong Song, Longjiang Zheng, Zhiguo Zhang, and Wenwu Cao  »View Author Affiliations


Optics Letters, Vol. 39, Issue 16, pp. 4635-4638 (2014)
http://dx.doi.org/10.1364/OL.39.004635


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Abstract

Under a 980 nm diode laser excitation, the near-infrared (NIR) emissions from Nd3+:F7/24, F5/24, and F3/24 states in Nd3+/Yb3+ codoped CaWO4 powder were studied at temperatures ranging from 303 to 873 K. As the temperature increased, the NIR luminescence intensity was significantly enhanced and nearly 190-fold enhancement was achieved at 873 K compared with that at 303 K. By using the fluorescence intensity ratio technique, the thermometry behaviors through the NIR emissions were investigated. The results illustrate that the sensitivity and the accuracy achieved here are much higher than temperature sensors based on other rare earth ion doped materials.

© 2014 Optical Society of America

OCIS Codes
(160.4760) Materials : Optical properties
(300.2140) Spectroscopy : Emission
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: May 21, 2014
Revised Manuscript: July 7, 2014
Manuscript Accepted: July 7, 2014
Published: August 4, 2014

Citation
Wei Xu, Qiutong Song, Longjiang Zheng, Zhiguo Zhang, and Wenwu Cao, "Optical temperature sensing based on the near-infrared emissions from Nd3+/Yb3+ codoped CaWO4," Opt. Lett. 39, 4635-4638 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-16-4635


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