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Proceedings Paper

Multiphoton upconversion thin film materials
Author(s): Yong Yi; Han-Don Sun; Hui-Bie F. Xu; Guang Huang; Xinjian Yi
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Paper Abstract

The upconversion fluophosphor codoped erbium-ytterbium was powdered into a grain diameter of near 1 micrometers . The upconversion powder was mixed with glue and addition agent. The colloid was printed on a sheet of paper forming a pattern shaped by a mask. The upconversion powder is white and the glue is transparent. As-printed pattern is too thin to see by human eyes. An intense visible pattern in green with wavelength of 542 nm has been observed at room temperature on the sheet of the paper using a GaAs infrared light emission diode as a pump source with a main wavelength of 900 nm. The fabrication process of the invisible pattern on the paper has been described in detail. The upconversion mechanism has been discussed.

Paper Details

Date Published: 15 April 1998
PDF: 3 pages
Proc. SPIE 3280, Rare-Earth-Doped Devices II, (15 April 1998); doi: 10.1117/12.305398
Show Author Affiliations
Yong Yi, Huazhong Univ. of Science and Technology (China)
Han-Don Sun, Huazhong Univ. of Science and Technology (China)
Hui-Bie F. Xu, Huazhong Univ. of Science and Technology (China)
Guang Huang, Huazhong Univ. of Science and Technology (China)
Xinjian Yi, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 3280:
Rare-Earth-Doped Devices II
Seppo Honkanen; Shibin Jiang, Editor(s)

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