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• W2013064822 abstract "Sm<SUP>2+</SUP>-doped glasses in the system of Al<SUB>2</SUB>O<SUB>3</SUB>-SiO<SUB>2</SUB> were prepared by the sol-gel processing of metal alkoxides and the reaction with H<SUB>2</SUB> gas at 800 degrees Celsius, of which hole burning properties were investigated. Sm<SUP>3+</SUP> ions-containing glasses prepared by a sol-gel method were reacted with H<SUB>2</SUB> gas to form the Sm<SUP>2+</SUP> ions. Fluorescence line narrowing spectra of the <SUP>5</SUP>D<SUB>0</SUB> yields <SUP>7</SUP>F<SUB>1</SUB> transition were analyzed to study the local structure surrounding the Sm<SUP>2+</SUP> ion. It is concluded that the Sm<SUP>2+</SUP> ions are closely coordinated with nine oxygens of the AlO<SUB>6</SUB> group in aluminosilicate glasses and the addition of Al<SUP>3+</SUP> ions into glass induces an increase in the coordination number of the Sm<SUP>2+</SUP>. The fluorescence intensity of the Sm<SUP>2+</SUP> and Sm<SUP>3+</SUP> ions considerably increases in glasses containing more than 5 mol% Al<SUB>2</SUB>O<SUB>3</SUB>. The holes were burned in the <SUP>7</SUP>F<SUB>0</SUB> yields <SUP>5</SUP>D<SUB>0</SUB> line of the Sm<SUP>2+</SUP> ions using a DCM dye laser at 77 K. The hole depth increased with increasing the laser irradiation time, reaching up to approximately 15% of the total intensity within a few hundred seconds. The hole width was 3 cm<SUP>-1</SUP> full width at half maximum at 77 K and increased with increasing temperature." @default.
• W2013064822 created "2016-06-24" @default.
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• W2013064822 date "1997-10-02" @default.
• W2013064822 modified "2023-10-05" @default.
• W2013064822 title "<title>Sm<formula>^{<roman>2+</roman>}</formula>-doped silicate glasses: sol-gel processing and persistent spectral hole burning</title>" @default.
• W2013064822 doi "https://doi.org/10.1117/12.279162" @default.
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