A Simulation of Magneto-Optical Signals in Near-Field Recording

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概要

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• The diffraction from two-dimensional magneto-optical marks has been calculated using the plane wave expansion method and the Fourier modal method. The modulation transfer function (MTF) in near field magneto-optical recording has been simulated for the first time on the basis of the strict vector diffraction theory. The simulated result proved that the magneto-optical signal is reduced by only 3 dB at a spatial frequency of NA/λ, for an air gap of 50 nm between a solid immersion lens with an effective numerical aperture (NA) of 1.5 and a magneto-optical disk surface.

• 社団法人応用物理学会の論文
• 1999-12-15

著者

• Saito Kimihiro

  Giga Byte Laboratories Sony Corporation

• Nakaoki Ariyoshi

  Giga Byte Laboratories Sony Corporation

• Kaneko Masahiko

  Giga Byte Laboratories Sony Corporation

関連論文

• Near-Field Optical Recording on a Pre-Grooved Phase-Change Disk in the Blue-Violet
• Near-Field Optical Recording on a Pre-Grooved Phase-Change Disk in the Blue-Violet
• A Simulation of Magneto-Optical Signals in Near-Field Recording

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