THE UV, BLUE AND GREEN UP-CONVERSION LUMINESCENCE OF PBF2+GEO2 - ER2O3 PUMPED WITH 650 NM

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WU X., DENIS J., OZEN G., GOLDNER P., PELLE F.

APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, vol.56, no.5, pp.269-273, 1993 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 56 Issue: 5
• Publication Date: 1993
• Doi Number: 10.1007/bf00325215
• Journal Name: APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
• Page Numbers: pp.269-273
• Istanbul Technical University Affiliated: No

Abstract

A detailed study of the spectroscopic properties of the PbF2+GeO2:Er2O3 vitroceramic sample upon 650nm excitation was investigated. The absorption, emission, excitation spectra, and time-resolved spectra have been measured. The up-conversion of red radiation (650 nm) into UV (368 nm and 379 nm), blue (406.8 nm) and green (522 nm and 540 nm) emissions is observed for Er3+ ions in the sample. The up-conversion process involves a two-photon absorption for the violet, blue, and green emission bands. A three-photon process happens for another violet (379nm) band.