| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1541497 | Optics Communications | 2008 | 4 Pages |
Abstract
Near-infrared to ultraviolet upconversion luminescence was observed in the Pr3+:Y2SiO5 crystal with 120 fs, 800 nm infrared laser irradiation. The observed emissions at around 270 nm and 305 nm could be assigned to 5d â 4f transitions of Pr3+ ions. The relationship between the upconversion luminescence intensity and the pump power of the femtosecond laser reveals that the UV emission belongs to simultaneous three-photon absorption induced upconversion luminescence.
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Authors
Xinshun Wang, Jianrong Qiu, Juan Song, Jian Xu, Yang Liao, Haiyi Sun, Ya Cheng, Zhizhan Xu,