Method for increasing linear bit density in magneto-optical stor

Details Method for increasing linear bit density in magneto-optical stor Method for increasing linear bit density in magneto-optical stor

1989-06-29

1992-11-03

Levy, Stuart S.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369116, 369117, 369118, 2502015, G11B 1100, G11B 700, G01J 132

Patent

active

051611341

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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