التفاصيل البيبلوغرافية
| العنوان: |
Sol–gel-derived Er-activated SiO2–HfO2 planar waveguides for 1.5μm application |
| المؤلفون: |
Zampedri, L.1,2 zampedri@science.unitn.it, Righini, G.C.3, Portales, H.4, Pelli, S.3, Nunzi Conti, G.3, Montagna, M.5, Mattarelli, M.5, Gonçalves, R.R.1,2, Ferrari, M.1, Chiasera, A.5, Bouazaoui, M.6, Armellini, C.1 |
| المصدر: |
Journal of Non-Crystalline Solids. Oct2004, Vol. 345-346, p580-584. 5p. |
| مصطلحات موضوعية: |
*COLLOIDS, *SILICON compounds, *SPECTRUM analysis, *WAVEGUIDES |
| مستخلص: |
Abstract: (100−x)SiO2–xHfO2 (x=10,20,30,40mol) planar waveguides, doped with 0.3mol% Er3+ ions were prepared by the sol–gel route, using dip-coating deposition on v-SiO2 substrates. The waveguides were characterized by m-line, Raman and photoluminescence spectroscopies. The results are discussed with the aim of assessing the role of hafnia on the structural, optical and spectroscopic properties of the erbium-doped silica-hafnia planar waveguides. The spectral bandwidth of the 4I13/2→4I15/2 transition does not change practically with the hafnium content. The 4I13/2 level decay curves present a single-exponential profile, with a lifetime between 5.5 and 7.1ms, depending on the HfO2 concentration. [Copyright &y& Elsevier] |
| قاعدة البيانات: |
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