High-resolution examination of recording marks in phase-change media using a scanning near-field optical microscope

Toshiyasu Tadokoro, Toshiharu Saiki, Keiichiro Yusu, Katsutaro Ichihara

研究成果: Article査読

10 被引用数 (Scopus)

抄録

Recording marks in digital versatile disc-random access memory (DVD-RAM) were examined using a scanning near-field optical microscope (SNOM) incorporating an improved probe tip design. The marks were recorded on an experimental DVD-RAM medium with a track-pitch of 0.6 μm. The tip size of the SNOM was made wider than the track width in order to avoid optical ghosting arising from the track edge. The recording power was varied in order to investigate the dependence of the mark shape on power and it was found that the mark shape correlated well with the reproduced signal. The SNOM is considered to be a good candidate for a practical characterization tool for optical recording media.

本文言語English
ページ(範囲)3599-3602
ページ数4
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
39
6 A
DOI
出版ステータスPublished - 2000
外部発表はい

ASJC Scopus subject areas

  • 工学一般
  • 物理学および天文学一般

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