| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1236306 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2006 | 6 Pages |
Abstract
Tm3+/Yb3+-doped alkali-barium-bismuth-tellurite (LKBBT) glasses have been fabricated and characterized. Density, refractive index, optical absorption, absorption and emission cross-sections of Yb3+, Judd–Ofelt parameters and spontaneous transition probabilities of Tm3+ have been measured and calculated, respectively. Intense blue three-photon upconversion fluorescence and near-infrared two-photon upconversion fluorescence were investigated under the excitation of a 980 nm diode laser at room temperature. Wide infrared transmission window, high refractive index and strong blue three-photon upconversion emission of Tm3+ indicate that Tm3+/Yb3+ co-doped LKBBT glasses are promising upconversion optical and laser materials.
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Authors
Hai Lin, Ke Liu, Lin Lin, Yanyan Hou, Dianlai Yang, Tiecheng Ma, Edwin Yun Bun Pun, Qingda An, Jiayou Yu, Setsuhisa Tanabe,