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Eu-Doped KCl storage phosphor for erasable and rewritable optical memory utilizing photostimulated luminescence phenomenon |
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| Authors: | Hidehito Nanto Fumitaka Endo Yoshiaki Hirai Shouichi Nasu Nozomu Takeuchi |
| Institution: | 1. Electron Device System Research Laboratory, Kanazawa Institute of Technology, 7-1, Oogigaoka, Nonoichi-machi, P.O. Kanazawa-South, 921, Japan 2. Department of Electrical Engineering, Kanazawa Institute of Technology, 7-1, Oogigaoka, Nonoichi-machi, P.O. Kanazawa-South, 921, Japan 3. Faculty of Technology, Kanazawa University, 20, Kodatsuno, Kanazawa, Ishikawa, 920, Japan |
| Abstract: | Intense photostimulated luminescence (PSL) with a peak at 420 nm is observed in ultraviolet (UV) Iight-irradiated europium-doped potassium chloride (KCl: Eu) crystalline phosphors. The PSL characteristics of UV-irradiated KCl: Eu phosphor for optical memory application were studied. The excitation and emission mechanisms of the 420 nm PSL, which are consistent with the results obtained, are discussed. |
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