Sol-Gel Processing of Sm2+-Doped Glass and Its Spectral Hole Burning at Room Temperature |
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Authors: | Masayuki Nogami Yoshihiro Abe |
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Institution: | (1) Nagoya Institute of Technology, 466 Showa Nagoya, Japan |
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Abstract: | The sol-gel process was applied to the preparation of Sm2+ ion-doped silicate glasses, which show persistent spectral hole burning at room temperature. The gels synthesized by the
hydrolysis of metal alkoxides and SmCl3·6H2O were heated in air at 500°C, were then reacted with H2 gas to form the Sm2+ ion. The Al2O3−SiO22 glasses are appropriate to reduce the Sm3+ ion with H2 gas and show intense photoluminescence of Sm2+ ion. Persistent spectra hole burning was observed in the excitation spectrum for the7F0→5D0 transition of the Sm2+ ion by the irradiation of DCM dye laser. The hole width and depth were ∼16 cm−1 and ∼10% of the total intensity, respectively, at 20°C. |
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Keywords: | spectral hole burning Sm2+ ion-doped glasses photoluminescence |
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