| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10640257 | Materials Science and Engineering: B | 2005 | 4 Pages |
Abstract
Infrared (1.2-1.6 μm) luminescence in a yttrium aluminium garnet (YAG) crystal, co-doped with Yb (10 at.%) and 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 1.35 μm and measured to be about 6% with respect to Yb3+ IR luminescence (λ = 1.03 μm). Analysis of the crystal absorption and luminescence spectra allows one to conclude that Yb3+-Cr4+ energy transfer is a mechanism responsible for the 3B2(3T2)-3B1(3A2) emission of Cr4+ ions. This crystal is promising as an efficient source of the near infrared emission.
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Authors
Xiaodong Xu, Zhiwei Zhao, Pingxin Song, Guoqing Zhou, Jun Xu, Peizhen Deng,