Influence of Groove Shape on Rear Expansion Detection Readout

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概要

• 論文の詳細を見る

• We have investigated the influence of groove shape and recording scheme on readout of rear expansion detection (RED) magneto optical media. Marks recorded by laser pulse magnetic field modulation (LP-MFM) were found to expand without a field while those recorded by light intensity modulation (LIM) required a field for expansion. Media with steep wall grooves showed a high carrier-to-noise ratio (CNR) of 42.7 dB at a mark length of 0.2 $\mu$m when recorded by LP-MFM and required a low readout field of less than 100 Oe even when recorded by LIM.

• INSTITUTE OF PURE AND APPLIED PHYSICSの論文
• 2001-03-30

著者

• Tsunashima Shigeru

  Nagoya University

• TAKAHASHI Koyata

  Tosoh Corporation

• Tsunashima Shigeru

  Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan

• Takahashi Koyata

  Tosoh Corporation, 2743-1 Hayakawa, Ayase, Kanagawa 252-1123, Japan

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