摘要
报道了可紫外激光刻写的掺铒Na2O-Bi2O3-SiO2和Na2O-B2O3-Bi2O3-SiO2玻璃的光谱特性.测量和计算了玻璃的光谱参数,分析、讨论了Bi2O3和B2O3含量变化对光谱参数的影响.实验表明基质玻璃中Bi2O3和B2O3含量改变可有效调节掺铒铋硅酸盐玻璃光谱参数.Bi2O3和B2O3含量增加,玻璃的光吸收和荧光性质改善,但Er3+离子的4I13/2能级寿命降低.在B2O3含量为40%(Bi2O3/SiO2=0.67)时,Er3+离子峰值发射截面、4I13/2能级的荧光寿命和荧光半高宽分别为8.49×10-21cm2,0.52ms和78nm.结果表明掺铒铋硅酸盐玻璃是有前途的紫外光敏有源玻璃材料之一.
This paper reports on the spectroscopic properties of ultraviolet laser photosensitive Er^3＋ -doped bismuth-silicate glasses. Two series of the glasses Na2O-Bi2O3-SiO2-Er2O3 and Na2O-B2O3-Bi2O3- SiO2-Er2O3 have been prepared by conventional melting and quenching technique . The absorption spectra, emission spectra and lifetime of Er^3＋ ion have been measured. The optical parameters have been analysed by Judd-Ofeh theory. It is found that the full width at half maximums （FWHMs） increase with increase of the value of Bi2O3/SiO2 and B2O3 content. Meanwhile, the lifetimes of ^4I13/2 level of Er^3＋ -doped glasses decrease with increasing Bi2 O3 and B2O3 content. When the content of B2O3 is 40 %, the measured stimulatied emission cross section, lifetime and FWHM of ^4I13/2→^4I15/2 transition of Er^3＋ -doped Na2O-B2 O3-Bi2 O3- SiO2 glass are 8.49 × 10^-21 cm^2, 0.52 ms and 78 nm respectively.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第5期2736-2741,共6页
Acta Physica Sinica
基金
国家自然科学基金(批准号:50472053)
教育部新世纪优秀人才资助计划(批准号:NCET-0823)
广东省自然基金(批准号:04020036)
广州市应用基础研究计划(批准号:2006J1-C0491)~~
