The upconversion properties of Er 3ΓΎ doped lead chloride tellurite glasses under 980 nm excitation are investigated. Three intense emission bands centered at 525, 547, and 657 nm corresponding to the transitions 2 H 11=2 ! 4 I 15=2 , 4 S 3=2 ! 4 I 15=2 , and 4 F 9=2 ! 4 I 15=2 , respectively, simult
Enhancement of upconversion luminescence due to the formation of nanocrystals in Er3+-doped tellurite glasses
β Scribed by Gang Zhou; Shixun Dai; Chunlei Yu; Junjie Zhang; Guonian Wang; Lei Wen; Zhonghong Jiang
- Book ID
- 115367491
- Publisher
- Optics InfoBase
- Year
- 2006
- Tongue
- English
- Weight
- 394 KB
- Volume
- 4
- Category
- Article
- ISSN
- 1671-7694
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Spectroscopic properties of Er 3+ -doped TeO 2 -WO 3 -Bi 2 O 3 (TWB) glass has been investigated. The transition probabilities, excited state lifetimes, and the branching ratios have been predicted for Er 3+ based on the Judd-Ofelt theory. The lifetime of 4 I 11/2 and 4 I 13/2 level were measured fr
The Raman spectra, infrared spectra and upconversion luminescence spectra were studied, and the effect mechanism of OH Γ groups on the upconversion luminescence of Er 3+ -doped oxyhalide tellurite glasses was analyzed. The results show that the phonon energy of lead chloride tellurite (PCT) glass wa