Properties of Super-Resolution Near-Field Structure with Platinum-Oxide Layer in Blu-ray Disc System

The super-resolution near-field structure with a platinum-oxide layer was applied to the Blu-ray Disc system. The carrier-to-noise ratios of 50.1, 46.2, and 39.2 dB were obtained at the mark lengths of 75, 50, and 37.5 nm, respectively, which are smaller than the resolution limit of 119 nm of the op...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2005-05, Vol.44 (5S), p.3596
Main Authors: Kikukawa, Takashi, Fukuzawa, Narutoshi, Kobayashi, Tatsuhiro
Format: Article
Language:English
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Summary:The super-resolution near-field structure with a platinum-oxide layer was applied to the Blu-ray Disc system. The carrier-to-noise ratios of 50.1, 46.2, and 39.2 dB were obtained at the mark lengths of 75, 50, and 37.5 nm, respectively, which are smaller than the resolution limit of 119 nm of the optics. Mark position recording with a mark length of 50 nm was also attempted, and we succeeded in retrieving recorded patterns correctly without loss of the signal.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.44.3596