Thermal-assisted magnetic recording head and magnetic...

Details Thermal-assisted magnetic recording head and magnetic... Thermal-assisted magnetic recording head and magnetic...

2006-09-13

2010-12-14

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C369S013330, C369S300000

Reexamination Certificate

active

07852713

ABSTRACT:
A thermal-assisted magnetic recording head which heats a magnetic bit of a magnetic disk by light radiation in recording magnetic data into the magnetic disk with a magnetic writing element. The magnetic recording head has a reflecting converging element with a surface emitting laser incorporated therein, and a transparent plate serving as a slider. A laser beam emitted from the surface emitting laser is reflected by a mirror surface of the reflecting converging element and is converged on a plasmon probe formed on a bottom surface of the transparent plate. Thereby, near-field light effuses from the plasmon probe into a very small area and heats the magnetic bit of the magnetic disk.

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I. Suzuki et al, “A Very Small Aperture Laser for Laser-Assisted Recording”, Sharp Technology Report, No. 91, Apr. 2005,Sharp Laboratories of America, Inc., pp. 26-30; Together with a partial English-language translation.
Japanese Notification of Reasons for Refusal dated Aug. 31, 2010, for counterpart Japanese Application No. 2006-202566, together with an English translation thereof.

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