Feasibility Study of High Density Land/Groove Recording on Magnetooptical Disks

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概要

• 論文の詳細を見る

• Land/groove recording on a magnetooptical disk with polyolefin and polycarbonate substrates was demonstrated, The laser wavelength, numerical aperture of the objective lens and focused beam spot size were 680 nm, 0.55 and 1.15 μm respectively. With a groove pitch of 1,3 μm, a carrier-to-noise ratio (CNR) of more than 45 dB with 0.6 μm mark length and crosstalk of less than -30 dB with 2.4 μm mark length were obtained. The effect of crosstalk cancellation in the polymer 'substrates was confirmed. Decreasing the vertical birefringence of the substrate improved the jitter and the CNR. The crosserase margin was 0.8 mW. It was identified that the CNR declined with the CNR phase shift.

• 社団法人応用物理学会の論文
• 1997-01-30

著者

• Kawano Toshifumi

  Yokohama Research Center Mitsubishi Chemical Corporation

• Takeshima Hideharu

  Yokohama Research Center Mitsubishi Chemical Corporation

• NARITA Kyuya

  Yokohama Research Center Mitsubishi Chemical Corporation

関連論文

• Dependence of Signals from Embossed Recording Fields and Grooves on Filling of Aperture of Objective Lens
• Recordable Digital Versatile Disc for High Data Transfer Rate Recording
• The 4.7 GB Recordable Digital Versatile Disc (DVD-R) for Multiple Speed Recording
• Feasibility Study of High Density Land/Groove Recording on Magnetooptical Disks
• The 4.7 GB Recordable Digital Versatile Disc (DVD-R) for Multiple Speed Recording

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