Magneto-optical head assembly

Details Magneto-optical head assembly Magneto-optical head assembly

G - Physics

11

B

352/32.4

G11B 11/10 (2006.01) G02F 1/09 (2006.01) G11B 7/08 (2006.01) G11B 11/105 (2006.01) H04N 1/21 (2006.01)

Patent

CA 1190321

ABSTRACT OF THE DISCLOSURE In a magneto-optical head assembly for a re- flection type magneto-optical memory apparatus which uses a laser beam for recording, retrieving, and erasing data on a recording medium comprised of a vertical, magnetic, and anisotropic thin film, the light beam emitted from the head assembly is guided to a fixed position on the recording medium in response to a control signal received by light detection apparatus and a separate light detection apparatus is provided for receiving a data signal. A beam splitter is positioned in the optical system through which the laser beam passes. A multilayer thin film dielectric material capable of increasing the Kerr rotation angle of the laser beam reflected from the recording medium may be applied to the beam splitter.

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