Luminescence properties and excitation process of a near-infrared to visible up-conversion color-tunable phosphor

Study of the spectroscopic properties an

Study of the spectroscopic properties and infrared-to-visible up-conversion fluorescence of Er3+-doped germanate glasses

✍ Ajroud, M. ;Haouari, M. ;Ben Ouada, H. ;Mâaref, H. ;Brenier, A. ;Champagnon, B. 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 373 KB

## Abstract Raman scattering, optical absorption and photoluminescence studies have been performed on Er^3+^‐doped Na~2~O–Nb~2~O~5~–GeO~2~ germanate‐based glasses. The main bands in the Raman spectra involve vibrational modes associated with the germanium oxide network. Judd–Ofelt intensity paramet