一种潜在的激光制冷介质-罗丹明B掺杂PMMA  

Rhodamine B doped PMMA—A potential material in laser cooling of solid

作　　者：吴云龙[1,2] 熊玉峰[1] 房晖[3] 

机构地区：[1]中国科学院理化技术研究所 [2]中国科学院研究生院,北京100039 [3]中国科学院安徽光学精密机械研究所

出　　处：《功能材料与器件学报》2004年第3期383-386,共4页Journal of Functional Materials and Devices

基　　金：国家自然科学基金资助(No.19974050)

摘　　要：报道了罗丹明B掺杂PMMA材料制作过程及材料吸收和荧光光谱实验。吸收光谱表明,PMMA样品从紫外到近红外范围存在较小的吸收。罗丹明B/PMMA样品吸收光谱主要反映罗丹明B的吸收特征,其吸收峰中心波长位于550nm。荧光光谱显示,以630nm激发,反斯托克斯荧光峰位于595nm,能量差为0.11eV。该材料辐射反斯托克斯荧光,可用于激光制冷领域的研究。Through the comparative study on the solid solutions of the Rhodmine B in PMMA, theyare found to be effective to produce fluorescence. Spectrum analysis by fluorescence spectrophotometerreveals that the materials appear to produce anti-stokes fluorescence peak with excitation sources atwavelengths longer than those corresponding to the peak of the luminescent bend. This means fluores-cence photons have redundant energy than pumping photons. That is to say that the Rhodamine B-doped PMMAs are potential material for laser cooling. One of the materials we proposed is solid solu-tion of Rhodamine B in PMMA. It is excited at 630nm and produced fluorescence peak about 595nm, and has energy difference of 0.11eV.

关 键 词：激光制冷 反斯托克斯荧光 罗丹明B PMMA 掺杂 制冷介质 

分 类 号：TB64[一般工业技术—制冷工程]