Method for increasing linear bit density in magneto-optical storage media
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United States of America Patent
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Nov 3, 1992
Grant Date -
N/A
app pub date -
Jun 29, 1989
filing date -
Jun 29, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for storing and reading a magneto-optical disk has a slit shaped aperture located in an air-bearing slider which flies above the disk. Domains of the disk are selected for storing or reading by a light beam. The domains are reduced in size without losing inter-domain resolution by illuminating the disk with the portion of a focused laser beam incident on the disk through the slit, the slit width being less than the full beam width. The slider preferably terminates a wedge-shaped cavity suspended above the medium a distance substantially less than the wavelength of the illuminating light; the thickness of the edges of the slit being substantially less than the wavelength of the illuminating light.
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