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

Ning Yuan; Hong-Xue Sun; Wing-Han Wong; Dao-Yin Yu; Edwin Yue-Bun Pun; De-Long Zhang

doi:10.1109/LPT.2015.2514159

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

Ning Yuan, Hong-Xue Sun, Wing-Han Wong, Dao-Yin Yu, Edwin Yue-Bun Pun, De-Long Zhang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

5 Citations (Scopus)

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.

Original language	English
Article number	7370799
Pages (from-to)	806-809
Journal	IEEE Photonics Technology Letters
Volume	28
Issue number	7
DOIs	https://doi.org/10.1109/LPT.2015.2514159
Publication status	Published - 1 Apr 2016

Research Keywords

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

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title = "Optical Temperature Sensor Based on Green Fluorescence of Er2O3 · 3Nb2O5 Phosphor",

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.",

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

author = "Ning Yuan and Hong-Xue Sun and Wing-Han Wong and Dao-Yin Yu and Pun, {Edwin Yue-Bun} and De-Long Zhang",

year = "2016",

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doi = "10.1109/LPT.2015.2514159",

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TY - JOUR

T1 - Optical Temperature Sensor Based on Green Fluorescence of Er2O3 · 3Nb2O5 Phosphor

AU - Yuan, Ning

AU - Sun, Hong-Xue

AU - Wong, Wing-Han

AU - Yu, Dao-Yin

AU - Pun, Edwin Yue-Bun

AU - Zhang, De-Long

PY - 2016/4/1

Y1 - 2016/4/1

N2 - 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.

AB - 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.

KW - Er2O3 · 3Nb2O5 phosphor

KW - fluorescence intensity ratio (FIR)

KW - Optical temperature sensor

KW - upconversion

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DO - 10.1109/LPT.2015.2514159

M3 - RGC 21 - Publication in refereed journal

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JO - IEEE Photonics Technology Letters

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