Abstract
This paper reports an up-conversion emission in violet (408 nm) from Nd3+-doped 93SiO2:7TiO2:20AlO1.5 glasses synthesized by the sol-gel process. Upon excitation at 583 nm (4I9/2→4G5/2), a bright violet up-conversion emission at 408 nm has been observed. The behavior of the up-conversion luminescence has been compared with that of the normal luminescence at both 408 and 1064 nm. The results show that while no concentration quenching for up to 2 mole Nd content is observed for the up-conversion emission, such an effect can be observed for the normal luminescence cases. Although the up-conversion luminescence has a shorter lifetime and weaker intensity, it is of use to the development of sol-gel glass-based waveguide lasers operating at the violet wavelength.
Original language | English (US) |
---|---|
Pages (from-to) | 1571-1578 |
Number of pages | 8 |
Journal | Materials Research Bulletin |
Volume | 35 |
Issue number | 9 |
DOIs | |
State | Published - Jul 1 2000 |
Externally published | Yes |
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering