Room-temperature spectral hole burning of Eu3+-doped Al2O3-SiO2 glasses treated with H2 gas and x ray

Tomotaka Ishikawa; Tomokatsu Hayakawa; Masayuki Nogami

doi:10.1117/12.424763

27 April 2001 Room-temperature spectral hole burning of Eu³⁺-doped Al₂O₃-SiO₂ glasses treated with H₂ gas and x ray

Tomotaka Ishikawa, Tomokatsu Hayakawa, Masayuki Nogami

Proceedings Volume 4282, Rare-Earth-Doped Materials and Devices V; (2001) https://doi.org/10.1117/12.424763
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

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.

Citation Download Citation

Tomotaka Ishikawa, Tomokatsu Hayakawa, and Masayuki Nogami "Room-temperature spectral hole burning of Eu³⁺-doped Al₂O₃-SiO₂ glasses treated with H₂ gas and x ray", Proc. SPIE 4282, Rare-Earth-Doped Materials and Devices V, (27 April 2001); https://doi.org/10.1117/12.424763

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