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Proceedings Paper

Photostimulated long-lasting phosphorescence in rare-earth-doped glasses
Author(s): Jianrong Qiu; Xiongwei Jiang; Congshan Zhu; Guodong Qian; Minquan Wang; Jinhai Si; Kazuyuki Hirao
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Paper Abstract

We report on the observation of photostimulated long-lasting phosphorescence in a Tb3+-doped glass sample. After irradiation by an ultraviolet (UV) light at 254 nm or an 800 nm femtosecond pulsed laser, we find that the glass sample emits bright and long-lasting phosphorescence. Long-lasting phosphorescence is observed once again after further excitation by 365 nm UV light when the 254 nm UV light or the femtosecond laser-induced long-lasting phosphorescence cannot be detected. The intensity of the photostimulated long-lasting phosphorescence decreases in inverse proportion to the time. Based on absorption, emission spectra and thermoluminescence curves, we consider the photostimulated long-lasting phosphorescence to be due to the light-induced re-arrangement and thermostimulated recombination of electrons and holes in traps induced by the 254 nm UV light or the femtosecond laser at room temperature. We infer that the observed phenomenon is useful in the fabrication of rewriteable three-dimensional optical memory with ultrahigh storage density and ultrafast storage speed.

Paper Details

Date Published: 16 July 2003
PDF: 5 pages
Proc. SPIE 5061, International Symposium on Photonic Glass (ISPG 2002), (16 July 2003); doi: 10.1117/12.517389
Show Author Affiliations
Jianrong Qiu, Shanghai Institute of Optics and Fine Mechanics (China)
Japan Science and Technology Corp. (Japan)
Zhejiang Univ. (China)
Xiongwei Jiang, Shanghai Institute of Optics and Fine Mechanics (China)
Japan Science and Technology Corp. (Japan)
Congshan Zhu, Shanghai Institute of Optics and Fine Mechanics (China)
Japan Science and Technology Corp. (Japan)
Guodong Qian, Zhejiang Univ. (China)
Minquan Wang, Zhejiang Univ. (China)
Jinhai Si, Japan Science and Technology Corp. (Japan)
Kazuyuki Hirao, Kyoto Univ. (Japan)


Published in SPIE Proceedings Vol. 5061:
International Symposium on Photonic Glass (ISPG 2002)
Congshan Zhu, Editor(s)

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