期刊
OPTICS LETTERS
卷 46, 期 23, 页码 5818-5821出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.442429
关键词
-
类别
资金
- National Natural Science Foundation of China [61505045, 81571720]
This study focused on high-performance fluorescence intensity ratio (FIR) thermometry utilizing the temperature-induced redshift of the charge transfer band (CTB), with a theoretical highest relative sensitivity of 1.86% K-1 and lowest uncertainty of 0.1 K at 783 K. Optimum excitation wavelengths for positive and negative monochrome sensitivity were determined, contributing to the development of an effective temperature sensing strategy.
Compared with the forbidden 4f transition of rare earth ions, the strong absorption of the charge transfer band (CTB) enabled fluorescence thermometry to have high luminescence efficiency. Based on the temperature induced redshift of CTB, a high performance fluorescence intensity ratio (FIR) thermometry performed by dual-wavelength alternative excitation was studied. By way of the rising and falling edges of CTB in Eu3+ doped YVO4, monochrome sensitivity as a function of excitation wavelength was studied in the range of 303-783 K. The excitation wavelength with the highest positive monochrome sensitivity was determined, as well as that with the negative one. The optimum FIR temperature sensing strategy is proposed, and the theoretical highest relative sensitivity (S-r) is calculated to be 1.86% K-1, with the lowest uncertainty (Delta T) of 0.1 K at 783 K. (C) 2021 Optical Society of America
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据