Laser and Spectroscopy Laboratory, Department of Applied Physics, Indian Institute of Technology (Indian School of Mines), Dhanbad-826004, Jharkhand, India. Grupo de Espectroscopia de MaterialesAvanzados y Nanoestructurados (GEMANA), Centro de Investigaciones en Optica A. C., León, Gto. 37150 México.
Methods Appl Fluoresc. 2017 Mar 22;5(1):015006. doi: 10.1088/2050-6120/aa5e31.
Optical temperature sensing in Er-Tm-Ybcodoped CaMoO phosphor prepared by chemical co-precipitation route based on the near infrared (NIR) to green upconversion emission from Er ion is reported. The variation with respect to external temperature in emission intensity ratio of the green emissions around 530 nm and 552 nm, corresponding to the H → I and S → I transitions respectively, under 980 nm excitation has been studied in detail, to report the sensing property of the prepared material; the maximum sensor sensitivity ∼0.0182 K was attained at 413 K. The laser induced optical heating within the prepared phosphor has been explored and the heat generation caused by the laser effect has been verified by comparison of experimental and calculated data.
本文报道了一种基于铒离子近红外（NIR）到绿光上转换发射的化学共沉淀法制备的掺铒-铥-钇-钙钼酸盐（Er-Tm-Yb-Codoped CaMoO）荧光粉的光学温度传感性能。在 980nm 激发下，详细研究了对应于 H→I 和 S→I 跃迁的 530nm 和 552nm 附近绿光发射的荧光强度比随外部温度的变化，以报告所制备材料的传感性能；在 413K 时，获得了最大传感器灵敏度约为 0.0182K。还探索了在制备的荧光粉中激光诱导的光学加热，并且通过实验和计算数据的比较验证了激光效应引起的热产生。
