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


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

APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, cilt.56, sa.5, ss.269-273, 1993 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 56 Konu: 5
  • Basım Tarihi: 1993
  • Doi Numarası: 10.1007/bf00325215
  • Dergi Adı: APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY
  • Sayfa Sayıları: ss.269-273

Özet

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.