Smart photostimulable phosphor materials for erasable and rewritable optical memory

Hidehito Nanto; Toshimitsu Shimada; Tomoyuki Sato; Noboru Kashiwagi; Toru Shinkawa; Shouichi Nasu; Eiji Kusano; Akira Kinbara; Yoshiteru Douguchi

doi:10.1117/12.293533

14 November 1997 Smart photostimulable phosphor materials for erasable and rewritable optical memory

Hidehito Nanto, Toshimitsu Shimada, Tomoyuki Sato, Noboru Kashiwagi, Toru Shinkawa, Shouichi Nasu, Eiji Kusano, Akira Kinbara, Yoshiteru Douguchi

Author Affiliations +

Proceedings Volume 3241, Smart Materials, Structures, and Integrated Systems; (1997) https://doi.org/10.1117/12.293533
Event: Far East and Pacific Rim Symposium on Smart Materials, Structures, and MEMS, 1997, Adelaide, Australia

Abstract

Photostimulated luminescence (PSL) in Eu and Sm co-doped II-VI compound phosphor ceramics such as SrS and CaS is studied in order to develop a smart erasable and rewritable optical memory utilizing PSL phenomenon. Intense PSL with a peak at about 600 nm and 650 nm is observed, respectively, in SrS:Eu,Sm and CaS:Eu,Sm posphor ceramics which are stimulated with infrared light after irradiation with ultraviolet-(UV) light or visible-light. The PSL characteristics of SrS:Eu,Sm posphor ceramics for the optical memory are reported. The OR Boolean logic operation is demonstrated using the PSL phenomenon in photostimulable phosphor materials.

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Hidehito Nanto, Toshimitsu Shimada, Tomoyuki Sato, Noboru Kashiwagi, Toru Shinkawa, Shouichi Nasu, Eiji Kusano, Akira Kinbara, and Yoshiteru Douguchi "Smart photostimulable phosphor materials for erasable and rewritable optical memory", Proc. SPIE 3241, Smart Materials, Structures, and Integrated Systems, (14 November 1997); https://doi.org/10.1117/12.293533

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