Ultrahigh Density Optical Recording by the Use of Scanning Near-Field Optical Microscope

Mitsuo HAMANO; Masahiro IRIE

doi:10.2184/lsj.24.1045

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Keywords: Near-field optical recording, Ultrahigh density memory, Photochromic molecules, Diarylethenes, Photon-mode optical recording

JOURNAL FREE ACCESS

1996 Volume 24 Issue 10 Pages 1045-1050

DOI https://doi.org/10.2184/lsj.24.1045

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Abstract

Near-field optical recording using magneto-optic, phase-change, and photochromic materials was reviewed. Among them, rewritable recording using photochromic media was described in detail. Marks as small as 100nm in width were recorded on the dithienylethene photochromic media by irradiation with 529-nm light, and erased by irradiation with UV light (300nm < λ < 400nm).

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