Up-conversion emission in triply-doped Ho3+/Yb3+/Tm3+ KGd(WO4)2 single crystals
✍ Scribed by D. Kasprowicz; M.G. Brik; A. Majchrowski; E. Michalski; P. Głuchowski
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 885 KB
- Volume
- 284
- Category
- Article
- ISSN
- 0030-4018
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Ho 3 + /Tm 3 + /Yb 3 + tri-doped glass ceramics with white light emitting have been developed and demonstrated. Pumped by 980 nm laser diode (LD), intensive red, green and blue up-conversions (UC) were obtained. The green emission is assigned to Ho 3 + ion and the blue emission is assigned to Tm 3 +
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],