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Proceedings Paper

Rare-earth fluorescence in novel oxyfluoride glasses and glass-ceramics
Author(s): Matthew J. Dejneka
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Paper Abstract

Transparent oxyfluoride glass-ceramics can provide a low- phonon energy fluoride environment for active rare earth ions while maintaining the durability, formability, and mechanical strength of an oxide glass. Fluorescence from RE doped samples indicate substantial partitioning into the fluoride crystals. Eu3+ doped glasses emit only red luminescence from the 5D0, but after treatment emit blue, green, and red luminescence, indicative of a low phonon energy rare earth environment. Er3+ doped samples show broadening and flattening of the 1530 emission band upon heat treatment, making them attractive for broad band amplifiers. Cerammed Pr3+ doped samples exhibit 240 microsecond(s) 1G4 fluorescent lifetimes, which indicates a 1310 nm quantum efficiency of 8%. It was determined that active rare earth partitioning into the LaF3 nanocrystallites that form upon heat treatment are responsible for the novel optical properties of these hybrid materials.

Paper Details

Date Published: 15 April 1998
PDF: 6 pages
Proc. SPIE 3280, Rare-Earth-Doped Devices II, (15 April 1998); doi: 10.1117/12.305402
Show Author Affiliations
Matthew J. Dejneka, Corning Inc. (United States)

Published in SPIE Proceedings Vol. 3280:
Rare-Earth-Doped Devices II
Seppo Honkanen; Shibin Jiang, Editor(s)

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