Eu-Doped KCl Storage Phosphor for Erasable and Rewritable Optical Memory Utilizing Photostimulated Luminescence Phenomenon

Hidehito NANTO; Fumitaka ENDO; Yoshiaki HIRAI; Shouichi NASU; Nozomu TAKEUCHI

doi:10.1007/BF03254855

Hidehito NANTO, Fumitaka ENDO, Yoshiaki HIRAI, Shouichi NASU, Nozomu TAKEUCHI

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Keywords: optical memory, photostimulated luminescence, KCl : Eu

JOURNAL FREE ACCESS

1994 Volume 1 Issue 2 Pages 177-179

DOI https://doi.org/10.1007/BF03254855

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Abstract

Intense photostimulated luminescence (PSL) with a peak at 420 nm is observed in ultraviolet (UV) light-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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