Er^(3+)/Nd^(3+)共掺铋锗酸盐玻璃2.7μm光谱性质研究（英文）  

Efficient emission of 2.7 μm from Diode-pumped Er^(3+)/Nd^(3+) Co-doped Bismuth Germanate Glass

作　　者：赵国营[1] 房永征[1] 张娜[1] 刘玉峰[1] 胡丽丽[2] 

机构地区：[1]上海应用技术学院,材料科学与工程学院,上海201418 [2]中国科学院上海光学精密机械研究所,中科院强激光材料重点实验室,上海201800

出　　处：《中国激光》2015年第7期164-170,共7页Chinese Journal of Lasers

基　　金：上海应用技术学院人才引进项目

摘　　要：用高温熔融法制备了Er3+/Nd3+共掺铋锗酸盐玻璃,研究了玻璃的吸收光谱和在808 nm抽运下的荧光光谱。研究表明:对应于2.7μm发光,Er3+/Nd3+共掺铋锗酸盐玻璃具有大的自发辐射几率(58.46 s-1)和受激发射截面(8.34×10-21cm2)。通过对铒钕离子之间能量传递微观系数和效率的计算得知,钕离子不但可以增加铒离子2.7μm发光上能级的布局数,而且可以减小其下能级的布局数,良好的2.7μm发光性质表明Er3+/Nd3+共掺铋锗酸盐玻璃是一种潜在的中红外发光激活介质。Mid-infrared emission spectroscopic property of Er^3＋/Nd^3＋co-doped bismuth germanate glasses pumped by 808 nm excitation is discussed. The absorption transition parameters of Er^3＋are estimated by Judd-Ofelt theory.For the luminescence of 2.7 mm, the as-made glasses is qualified with higher spontaneous transition probability（58.46 s^-1） and larger calculated emission cross section（8.34×10^-21cm^2）.The large energy transfer probability rate between Er^3＋and Nd^3＋indicate that the co-doping Nd^3＋greatly enhances the 2.7 mm emission of Er^3＋, and this might indicate that this glass is potentially applicable materials for mid-infrared laser devices.

关 键 词：材料 玻璃 光谱性质 2.7μm发光 铋锗酸盐玻璃 Er^3+/Nd^3+共掺 

分 类 号：TQ174[化学工程—陶瓷工业]