| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1237116 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005 | 4 Pages |
Abstract
Infrared (1.2–1.6 μm) luminescence in a ytterbium aluminium garnet (YbAG) crystal, doped with Cr (0.05 at.%) ions, was investigated under CW laser diode pumping (λ = 940 nm). The Cr4+ emission band was observed with its peak at 1.34 μm and measured to be about 1.3 times with respect to Yb3+ IR luminescence (λ = 1.03 μm). We demonstrate that for the excitation wavelength of 940 nm Yb3+ ions act as sensitizers of the 3B2(3T2)–3B1(3A2) emission of Cr4+ ions. This crystal is promising as a high-efficient system for tunable laser (1.2–1.6 μm) output.
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Authors
Xiaodong Xu, Zhiwei Zhao, Pingxin Song, Guoqing Zhou, Jun Xu, Peizhen Deng, Gilbert Bourdet, Jean Christophe Chanteloup, Ji-Ping Zou, Annabelle Fulop,