El-Mallawany, R. ; Patra, Amitava ; Friend, Christopher S. ; Kapoor, Rakesh ; Prasad, Paras N. (2004) Study of luminescence properties of Er3+-ions in new tellurite glasses Optical Materials, 26 (3). pp. 267-270. ISSN 0925-3467
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.optmat.2004.01.002
Abstract
The effects of concentration of Er3+ ions in tellurite glasses on the decay time, spectral width and weighted spectral peak are studied. A broad emission spectrum of width 121 nm peaked at wavelength of 1.5 μm is obtained in 2.5 mol% Er doped glasses. The maximum decay time of 4∣13/2 → 4∣15/2 transition (at wavelength 1.5 μm) is about 4.5 ms for 1.0 mol% Er doped glasses. Strong green and red upconversion emission at emission 550 nm(4S3/2 → 4∣ 15/2) and 670 nm (4F9/2 → 4∣ 15/2) are observed from Er3+-doped tellurite glasses upon continuous wave excitation at 975 nm. It is found that the upconversion efficiency goes up with the increasing concentration of the Er3+ ions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Tellurite Elass; Rare-Earth; Luminescence; Upconversion |
| ID Code: | 104859 |
| Deposited On: | 01 Dec 2017 11:06 |
| Last Modified: | 01 Dec 2017 11:06 |
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