Optical Temperature Sensor Based on Green Fluorescence of Er2O3 · 3Nb2O5 Phosphor

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

3 Scopus Citations
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Author(s)

  • Ning Yuan
  • Hong-Xue Sun
  • Wing-Han Wong
  • Dao-Yin Yu
  • De-Long Zhang

Detail(s)

Original languageEnglish
Article number7370799
Pages (from-to)806-809
Journal / PublicationIEEE Photonics Technology Letters
Volume28
Issue number7
Publication statusPublished - 1 Apr 2016

Abstract

We report an optical temperature sensor based on the thermal effect of fluorescence intensity ratio of 980-nm upconverted green 530- and 550-nm emissions of Er2O3 · 3Nb2O5 phosphor. The sensor consists of only a 980-nm LD, two narrow-band interference filters and two Si-photocells, while being without the use of optical lens to collect the fluorescence. Thermal effect on the photocell output was calibrated. The results show that the output has a linear relation to the temperature and the linearity is independent of input power. The performance characterization shows that the sensor exhibits a relative sensitivity (5-7) × 10-3 K-1 in the temperature range of 303-353 K. The setup is applicable to other Er3+-doped materials with a higher relative sensitivity.

Research Area(s)

  • Er2O3 · 3Nb2O5 phosphor, fluorescence intensity ratio (FIR), Optical temperature sensor, upconversion

Citation Format(s)

Optical Temperature Sensor Based on Green Fluorescence of Er2O3 · 3Nb2O5 Phosphor. / Yuan, Ning; Sun, Hong-Xue; Wong, Wing-Han; Yu, Dao-Yin; Pun, Edwin Yue-Bun; Zhang, De-Long.

In: IEEE Photonics Technology Letters, Vol. 28, No. 7, 7370799, 01.04.2016, p. 806-809.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review