Yan Lin, Li Bo, Song Yunfei, Lv Zhe, Zheng Xianxu, Wu Qiang, Yang Yanqiang
Opt Lett. 2017 Oct 1;42(19):3793-3795. doi: 10.1364/OL.42.003793.
An optical method based on the multiphonon-assisted anti-Stokes-to-Stokes fluorescence intensity ratio (ASFIR) has been developed for temperature sensing. The ASFIR of YAG:Ce is found to exhibit a near linear and monotonic temperature dependence. Based on these properties, a thermometry using the ASFIR technique has been demonstrated in the range extending from 300 to 800 K with a nearly constant sensitivity of 0.07% K and a precision of ±2% at 800 K. Also, the conventional dual-Stokes emission bands intensity ratio of YAG:Ce is shown to depend non-monotonically on temperature; thus the suggested ASFIR technique offers an effective method for luminescence thermometry.
一种基于多声子辅助反斯托克斯到斯托克斯荧光强度比（ASFIR）的光学方法已被开发用于温度传感。发现YAG:Ce的ASFIR呈现出近似线性且单调的温度依赖性。基于这些特性，已证明使用ASFIR技术的测温法在300至800 K的范围内具有近0.07% K的恒定灵敏度以及在800 K时±2%的精度。此外，YAG:Ce的传统双斯托克斯发射带强度比被证明非单调地依赖于温度；因此所提出的ASFIR技术为发光测温提供了一种有效方法。
