Optically-assisted magnetic recording head and...

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

2008-05-13

2008-05-13

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Record editing

Reexamination Certificate

active

10920182

ABSTRACT:
A pair of members opposed to each other via a gap are commonly used as an evanescent light probe and a writing magnetic head. When the spacing and width of the gap are smaller than the wavelength λ of injected light, highly intensive evanescent light is generated from the gap position of the opposite surface. Magnetic writing is carried out by applying a recording magnetic field from the pair of members to a medium heated by the evanescent light.

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Robert D. Grober, et al. “Optical Antenna: Towards a Unity Deficiency Near-Field Optical Probe,” Appl. Phys. Lett, 70(11), Mar. 17, 1997, pp. 1354-1356.

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