Upconversion luminescence of Tm3+ sensitized by Yb3+ ions in monoclinic KGd(WO4)2 single crystals
✍ Scribed by F. Güell; R. Solé; Jna. Gavaldà; M. Aguiló; M. Galán; F. Díaz; J. Massons
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 222 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0925-3467
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The analysis some of the acoustic phonons propagating in pure and Ho 3+ -doped KGd(WO 4 ) 2 single crystals in the GHz frequency range by Brillouin scattering method has been presented. For investigated crystals the velocities of the longitudinal and transverse acoustic phonons [100], [010], [001],
In this paper we present the study of the acoustic phonons propagating in Er 3+ -doped KGd(WO 4 ) 2 single crystals by Brillouin spectroscopy. For the investigated crystals the velocities of the longitudinal and transverse acoustic phonons [100], [010], [001], [101] and [110] have been determined. M