Sol-gel synthesis of rare-earth-doped lanthanum halides for highly efficient 1.3-μm optical amplification

John Ballato, Richard Riman, Elias Snitzer

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

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 languageEnglish (US)
Pages (from-to)691-693
Number of pages3
JournalOptics Letters
Volume22
Issue number10
DOIs
StatePublished - May 15 1997

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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