| 摘要 |
<p>High rare-earth content glasses (Ln2O3≥20 mo1%) have applications as high optical density wavelength-selective filters, faraday rotators, scintillation glasses and high index glasses. New glasses are formed by adding TiO2 to the system SiO2-B2O3-Al2O3-Ln2O3. These glasses have improved optical properties, extended glass formation range and have superior resistance to devitrification. In some embodiments TiO2 can fully replace the Al2O3. In additional embodiments, SiO2 can be completely removed from the glass.</p> |
