Valley-to-peak intensity ratio thermometry based on the red upconversion emission of Er3+

Leipeng Li; Wei Xu; Longjiang Zheng; Feng Qin; Yuan Zhou; Zhang Liang; Zhiguo Zhang; Wenwu Cao

doi:10.1364/OE.24.013244

Valley-to-peak intensity ratio thermometry based on the red upconversion emission of Er³⁺

Leipeng Li, Wei Xu, Longjiang Zheng, Feng Qin, Yuan Zhou, Zhang Liang, Zhiguo Zhang, Wenwu Cao

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Upon 976 nm diode laser excitation, the temperature dependence of the red upconversion emission of Er³⁺ in CaWO₄:Yb³⁺/Er³⁺ phosphor was studied from 298 to 478 K. The spectrum was verified to consist of two Stark components originating from two Stark sublevels of ⁴F9/2 excited state to ⁴I15/2 ground state of Er³⁺. The valley-to-peak intensity ratio (VPR) of this double-peak spectrum was found to increase linearly with the rise of temperature. The maximum relative sensitivity of this VPR method was obtained to be about 0.20% K^-1 at 298 K. Moreover, a study on the power dependence was also performed, suggesting that VPR method is immune to the pump power and is thus suitable for monitoring the temperature.

Original language	English (US)
Pages (from-to)	13244-13249
Number of pages	6
Journal	Optics Express
Volume	24
Issue number	12
DOIs	https://doi.org/10.1364/OE.24.013244
State	Published - Jun 13 2016

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OE.24.013244

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title = "Valley-to-peak intensity ratio thermometry based on the red upconversion emission of Er3+",

abstract = "Upon 976 nm diode laser excitation, the temperature dependence of the red upconversion emission of Er3+ in CaWO4:Yb3+/Er3+ phosphor was studied from 298 to 478 K. The spectrum was verified to consist of two Stark components originating from two Stark sublevels of 4F9/2 excited state to 4I15/2 ground state of Er3+. The valley-to-peak intensity ratio (VPR) of this double-peak spectrum was found to increase linearly with the rise of temperature. The maximum relative sensitivity of this VPR method was obtained to be about 0.20% K-1 at 298 K. Moreover, a study on the power dependence was also performed, suggesting that VPR method is immune to the pump power and is thus suitable for monitoring the temperature.",

author = "Leipeng Li and Wei Xu and Longjiang Zheng and Feng Qin and Yuan Zhou and Zhang Liang and Zhiguo Zhang and Wenwu Cao",

note = "Funding Information: This work was supported by National Natural Science Foundation of China (NSFC) (grants 61505174 and 61505045), Postdoctoral Science Foundation of China (2014M560195 and 2014M561342), Fundamental Research Funds for the Central Universities and PIRS of HIT (B201415) and Qinhuangdao Science and Technology Project (201401A032). Publisher Copyright: {\textcopyright} 2016 Optical Society of America.",

year = "2016",

month = jun,

day = "13",

doi = "10.1364/OE.24.013244",

language = "English (US)",

volume = "24",

pages = "13244--13249",

journal = "Optics Express",

issn = "1094-4087",

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TY - JOUR

T1 - Valley-to-peak intensity ratio thermometry based on the red upconversion emission of Er3+

AU - Li, Leipeng

AU - Xu, Wei

AU - Zheng, Longjiang

AU - Qin, Feng

AU - Zhou, Yuan

AU - Liang, Zhang

AU - Zhang, Zhiguo

AU - Cao, Wenwu

N1 - Funding Information: This work was supported by National Natural Science Foundation of China (NSFC) (grants 61505174 and 61505045), Postdoctoral Science Foundation of China (2014M560195 and 2014M561342), Fundamental Research Funds for the Central Universities and PIRS of HIT (B201415) and Qinhuangdao Science and Technology Project (201401A032). Publisher Copyright: © 2016 Optical Society of America.

PY - 2016/6/13

Y1 - 2016/6/13

N2 - Upon 976 nm diode laser excitation, the temperature dependence of the red upconversion emission of Er3+ in CaWO4:Yb3+/Er3+ phosphor was studied from 298 to 478 K. The spectrum was verified to consist of two Stark components originating from two Stark sublevels of 4F9/2 excited state to 4I15/2 ground state of Er3+. The valley-to-peak intensity ratio (VPR) of this double-peak spectrum was found to increase linearly with the rise of temperature. The maximum relative sensitivity of this VPR method was obtained to be about 0.20% K-1 at 298 K. Moreover, a study on the power dependence was also performed, suggesting that VPR method is immune to the pump power and is thus suitable for monitoring the temperature.

AB - Upon 976 nm diode laser excitation, the temperature dependence of the red upconversion emission of Er3+ in CaWO4:Yb3+/Er3+ phosphor was studied from 298 to 478 K. The spectrum was verified to consist of two Stark components originating from two Stark sublevels of 4F9/2 excited state to 4I15/2 ground state of Er3+. The valley-to-peak intensity ratio (VPR) of this double-peak spectrum was found to increase linearly with the rise of temperature. The maximum relative sensitivity of this VPR method was obtained to be about 0.20% K-1 at 298 K. Moreover, a study on the power dependence was also performed, suggesting that VPR method is immune to the pump power and is thus suitable for monitoring the temperature.

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JO - Optics Express

JF - Optics Express

IS - 12

ER -

Valley-to-peak intensity ratio thermometry based on the red upconversion emission of Er³⁺

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