Heat-assisted magnetic recording head with a near-field transducer extending beyond the media-facing surface

Heat-assisted magnetic recording head with a near-field transducer extending beyond the media-facing surface

A recording head has a waveguide that delivers optical energy from an energy source and a write pole extending to a media-facing surface of the recording head. The recording head also has a near-field transducer coupled to receive the optical energy from the waveguide and emit surface plasmons from...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Zhang, Peng, Kiely, James D, Rejda, Edwin F, Ellison, David James, Seigler, Michael A
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:A recording head has a waveguide that delivers optical energy from an energy source and a write pole extending to a media-facing surface of the recording head. The recording head also has a near-field transducer coupled to receive the optical energy from the waveguide and emit surface plasmons from the media-facing surface towards a recording medium while the write pole applies a magnetic field to the recording medium. The near-field transducer has an extended portion that, as-manufactured, protrudes beyond the media-facing surface by a first distance.