Magnetization detecting method and apparatus

Details Magnetization detecting method and apparatus Magnetization detecting method and apparatus

2011-06-21

2011-06-21

Haley, Joseph (Department: 2627)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C369S013220, C369S126000

Reexamination Certificate

active

07965586

ABSTRACT:
A detection method and apparatus for reading magnetization information recorded in high density. A metal probe is brought close to the surface of a magnetic recording medium, in which information is recorded as magnetization, with the distance on the order of nanometers. The region is irradiated with an incident light as its polarization direction is modulated, and polarization dependency of a tunnel current or reflected polarization intensity is measured.

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Office Action from the Japanese Patent Office in the corresponding Japanese Patent Application No. 2005-290255 (2 pages) dated Dec. 21, 2010.

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