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Proceedings Paper

Room-temperature spectral hole burning of Eu3+-doped Al2O3-SiO2 glasses treated with H2 gas and x ray
Author(s): Tomotaka Ishikawa; Tomokatsu Hayakawa; Masayuki Nogami
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Paper Abstract

Persistent spectral hole burning (PSHB) spectra were observed at room temperature in Eu3+ ions-doped glasses treated with either H2 gas or X-ray. The Eu3+-doped Al2O3-SiO2 glasses were prepare by sol-gel process. The glasses were heated at 500 to 800 degrees C in H2 gas, and irradiated with x-ray. The PSHB spectra were burned on the 7F0 yields 5D0 transition of the Eu3+ ions. The hole depth increased with increasing heat treatment time and is maximum for the samples heated at 600 degrees C for 1h. In the x-ray-irradiated glasses, the PSHB spectra were observed at room temperature for the first time, to our knowledge, and the hole depth increases with increasing irradiation time. In the x-ray-irradiated glasses, no fluorescence was observed form the Eu3+ ions. A novel. Model for hole burning is proposed on the basis of the excitation of the Eu3+ ions and subsequent hole trapping in the oxygen- defect centers of the Al-O polyhedra.

Paper Details

Date Published: 27 April 2001
PDF: 7 pages
Proc. SPIE 4282, Rare-Earth-Doped Materials and Devices V, (27 April 2001); doi: 10.1117/12.424763
Show Author Affiliations
Tomotaka Ishikawa, Nagoya Institute of Technology (Japan)
Tomokatsu Hayakawa, Nagoya Institute of Technology (Japan)
Masayuki Nogami, Nagoya Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 4282:
Rare-Earth-Doped Materials and Devices V
Shibin Jiang, Editor(s)

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