Abstract
Praseodymium- and dysprosium-doped lanthanum halide powders have been synthesized by a sol-gel-reactive-atmosphere approach. Emission at 1.3 μm from a sol-gel-derived material was observed for the first time to our knowledge. Measured lifetimes corresponded to radiative quantum efficiencies of approximately 8% for Pr3+:LaF3, 72% for Pr3+:LaCl3, and 78% for Dy3+:LaCl3. The spectroscopic properties of these hosts are shown to be comparable with those of melt-grown single-crystal analogs, verifying the ability of inexpensive and low-temperature solution-based methodologies to produce low-phonon-energy materials.
Original language | English (US) |
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Pages (from-to) | 691-693 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 22 |
Issue number | 10 |
DOIs | |
State | Published - May 15 1997 |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics