The Influence of Adjacent Preformat Pits on Magneto-Optical Signals

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概要

• 論文の詳細を見る

• Fluctuations in magneto-optical(MO)signals have been observed in 3.5-in. 640MB MO disks which have the zone constant angular velocity(ZCAV)format. They were found to occur at the border of each band(zone)when there were preformat pits in the adjacent band. The fluctuations were observed in those MO disks whose substrates were injection molded polycarbonate(PC). The degree of these MO signal fluctuations depended on the injection molding conditions of the substrates and the phase shift of the optical head. It is thought that such phenomena can be attributed to tilted ellipsoids of substrate birefringence that occur around preformat pits, and which are caused by stresses induced around the preformat pits during the injection molding Process.

• 社団法人応用物理学会の論文
• 2000-05-15

著者

• Tomie Takashi

  Recording Media Research Laboratory Teijin Limited

• UMEZAWA Tomokazu

  Recording Media Research Laboratory, Teijin Limited

• HORIGUCHI Toru

  Recording Media Research Laboratory, Teijin Limited

• NAKATANI Takashi

  Recording Media Research Laboratory, Teijin Limited

• Horiguchi Toru

  Recording Media Research Laboratory Teijin Limited

• Nakatani Takashi

  Recording Media Research Laboratory Teijin Limited

• Umezawa Tomokazu

  Recording Media Research Laboratory Teijin Limited

• Umezawa Tomokazu

  Recording Media Research Laboratory

関連論文

• UV Laser Mastering with a Multilayer Coating Method Producing Land/Groove Type of Optical Disk with Track Pitch of 0.3 μm or Less
• High-Density Optical Disk Mastering Using Multilayer Coating Method
• The Influence of Adjacent Preformat Pits on Magneto-Optical Signals
• Hygroscopic Expansion of Polyester Films
• Improvements of Resolution and Surface Roughness using Alkaline Treatment of Photoresist Surface in High-Density Optical Disk Mastering
• Influence of Injection Molding Process on the Local Fluctuations of Magneto-Optical Signals

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