Publications (2)1.65 Total impact
Article: Effect of various alkaline-earth metal oxides on the broadband infrared luminescence from bismuth-doped silicate glasses[show abstract] [hide abstract]
ABSTRACT: We report on the effect of various alkaline-earth metal oxides on the broadband infrared luminescence covering 1000–1600 nm wavelength region from bismuth-doped silicate glasses. The full width at half maximum (FWHM) of the infrared luminescence and the fluorescent lifetime is more than 200 nm and 400 μs, respectively. The fluorescent intensity decreases with increasing basicity of host glasses. Besides the broadband infrared luminescence, luminescence centered at 640 nm was also observed, which should be ascribed to Bi2+ rather than to the familiar Bi3+. We suggest that the infrared luminescence should be assigned to the transition of BiO molecules dispersed in the host glasses.Solid State Communications 140(1):38-41. · 1.65 Impact Factor
Article: Fluorescence properties and laser demonstrations of Nd-doped high silica glasses prepared by sintering nanoporous glass[show abstract] [hide abstract]
ABSTRACT: Porous glass with high-SiO2 content was impregnated with Nd ions, and subsequently sintered at 1100 °C into a compact non-porous glass in air or reducing atmosphere. Sintering in a reducing atmosphere produced an intense violet–blue fluorescence at 394 nm. However, the sintering atmospheres almost did not affect the fluorescence properties in the infrared range. A good performance Nd3+-doped silica microchip laser operating at 1064 nm was demonstrated. The Nd-doped sintering glasses with high-SiO2 content are potential host materials for high power solid-state lasers and new transparent fluorescence materials.Journal of Non-Crystalline Solids.