荧光现象及其温度敏感性的观察  

Observing the fluorescence phenomenon and its sensitivity on temperature

作　　者：赵小兵[1] 张巍巍[1] 王国耀[1] 史凯兴 秦朝菲 

机构地区：[1]南昌航空大学江西省光电检测技术工程实验室,江西南昌330063

出　　处：《物理实验》2017年第6期10-13,共4页Physics Experimentation

基　　金：国家自然科学基金(No.61167007;No.61665008);航空科学基金(No.2016ZD56006);江西省青年科学家培养计划(No.20153BCB23037)

摘　　要：设计了荧光温度传感实验,演示荧光现象和荧光传感技术,并介绍了谱带重心分析法.裁取1小片常见的白色打印纸,附着于纸上的荧光增白剂在405nm光照激发下发出荧光.将纸片加热,从室温到85℃每间隔5℃记录1次荧光发射光谱,其荧光强度随温度升高而猝灭.用谱带重心参量νB描述荧光谱带的位置,与谱峰位置一起用于温度传感,谱峰位置随温度的移动并不显著,重心法给出了可信的传感方程νB=20 636-3.33t.The fluorescence temperature sensing experiment was designed. The fluorescence phenomenon and fluorescence sensing technology were demonstrated, and the barycenter technique was introduced. Temperature-dependent fluorescence of a piece of white paper was analyzed in the range of 30-85 ℃ under an excitation of 405 nm laser. The thermal quenching and red shift of the paper＇s fluorescence were observed when temperature increased. Finally, a temperature sensing function νB=20 636-3.33t was retrieved using the barycenter technique.

关 键 词：荧光 温度 频移 谱带重心 

分 类 号：O433[机械工程—光学工程] TP212.1[理学—光学]