研究了掺铒TeO2-WO3玻璃的吸收光谱和荧光光谱性质.根据吸收光谱,应用Judd-Ofelt理论计算得到了3个强度参数Ωt(t=2,4,6),分别为Ω2=5.38×10-20cm2,Ω4=1.78×10-20 cm2,Ω6=0.75×10-20cm2.Er3+离子在TeO2-WO3玻璃中的Ω6小于磷酸盐、氟磷酸盐中的Ω6,而大于锗酸盐、硅酸盐和碲酸盐玻璃中的Ω6,说明Er-O键在TeO2-WO3玻璃中的共价性大于磷酸盐、氟磷酸盐中Er-O键的共价性而小于锗酸盐、硅酸盐和碲酸盐玻璃中Er-O键的共价性.4I13/2→4I15/2荧光光谱表明Er3+的荧光半高宽(FWHM)为66 nm,荧光寿命为3.2 ms;应用McCumber理论计算了Er3+的峰值发射截面σe为8.0×10-21cm2.对Er3+在不同基质玻璃中光谱参数比较发现,TeO2-WO3玻璃的FWHM×σe乘积较大,说明其带宽特性较好.
参考文献
| [1] | Wang J S;Vogel E M;Snitzer E .Tellurite glass: a new candidate for fiber devices[J].Optical Materials,1994,3(03):187. |
| [2] | Prakash GV.;Bhatnagar AK.;Rao DN. .Linear optical properties of niobium-based tellurite glasses[J].Solid State Communications,2001(1):39-44. |
| [3] | Boyer JC.;Vetrone F.;Capobianco JA.;Speghini A.;Bettinelli M. .Optical transitions and upconversion properties of Ho3+ doped ZnO-TeO2 glass[J].Journal of Applied Physics,2003(12):9460-9465. |
| [4] | Wachtler M.;Gatterer K.;Fritzer HP.;Ajo D.;Bettinelli M.;Speghini A. .Optical properties of rare-earth ions in lead germanate glasses[J].Journal of the American Ceramic Society,1998(8):2045-2052. |
| [5] | Mori A.;Yamada M.;Kanamori T.;Oikawa K.;Nishida Y. Ohishi Y.;Kobayashi K. .Low noise broadband tellurite-based Er3+-doped fibre amplifiers[J].Electronics Letters,1998(9):887-888. |
| [6] | Judd B R .Optical absorption intensities of rare-earth ions[J].Physical Review,1962,127(03):750. |
| [7] | Ofelt G S .Intensities of crystal spectra of rare-earth ions[J].Journal of Chemical Physics,1962,37(03):511. |
| [8] | Zou X;Izumitani T .Spectroscopic properties and mechanisms of excited state absorption and energy transfer upconversion for Er3+-doped glasses[J].Journal of Non-Crystalline Solids,1993,162(1-2):68. |
| [9] | 杨建虎,戴世勋,胡丽丽,姜中宏,李顺光.Er3+和Yb3+共掺碲酸盐玻璃的光谱性质[J].光学学报,2003(02):210-215. |
| [10] | McCumber D E .Theory of phonon-terminated optical masters[J].Physical Review A,1964,134(02):299. |
| [11] | MINISCALCO W J;Quimby R S .General procedure for the analysis of Er3 + cross sections[J].Optics Letters,1991,16(04):258. |
| [12] | Lin H.;Man SQ.;Liu XR.;Pun EYB. .Optical transitions and frequency upconversion of Er3+ ions in Na2O center dot Ca3Al2Ge3O12 glasses[J].Journal of the Optical Society of America, B. Optical Physics,2001(5):602-609. |
| [13] | Jiang SB.;Hwang BC.;Smekatala F.;Seneschal K.;Lucas J. Peyghambarian N.;Luo T. .Er3+-doped phosphate glasses for fiber amplifiers with high gain per unit length[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2000(1/4):364-368. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%