Er^(3+)/Yb^(3+)共掺Bi_2O_3-B_2O_3-Ga_2O_3玻璃光谱性质研究  

Spectral Properties of Er^(3+)/Yb^(3+) Co-doped Bi_2O_3-B_2O_3-Ga_2O_3 Glasses

作　　者：周灵[1] 周亚训[1] 戴世勋[1] 聂秋华[1] 徐铁峰[1] 王俊[1] 

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211

出　　处：《宁波大学学报（理工版）》2006年第3期306-310,共5页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：国家自然科学基金(60207006);浙江省自然科学基金(M603019);宁波市自然科学基金(2006A610026)

摘　　要：制备了铒单掺和铒镱共掺的铋酸盐玻璃,对掺Er3+离子后玻璃的吸收光谱和荧光光谱进行了测试,分析了Yb2O3浓度对其吸收光谱和荧光光谱的影响,并应用McCumber理论计算了Er3+离子的受激发射截面.当Yb3+/Er3+的浓度比例为4:1时,荧光强度、荧光半高宽(FWHM)和峰值发射截面(σepeak)均达到了峰值,其FWHM和σepeak分别为77nm和1.08×10-20 cm2.The novel Er^3＋ single-doped and Er^3＋/Yb^3＋ co-doped Bi2O3-B2O3-Ga2O3 glasses are prepared. The effect of Yb2O3 concentration on absorption spectra and emission spectra of glasses are measured and investigated. The stimulated emission cross-sections of the ^4I13/2→^4I15/2 transition of Er^3＋ are calculated using the McCumber theory. The results indicate that the emission intensity, fluorescence full width at half maximum （FWHM） and the peak value of stimulated emission cross-section （σe^peak） all reaches a peak value when Yb^3＋/Er^3＋ concentration ratio is 4/1, and the max FWHM and σe^peak is 77 nm and 1.08 ×^-20 cm^2, respectively.

关 键 词：铋酸盐玻璃 光谱性质 荧光半高宽 受激发射截面 

分 类 号：TQ171[化学工程—玻璃工业]