Data writing with plasmon resonator
AssigneeSeagate Technology LLC
InventorsMichael Allen Seigler, Thomas William Clinton, Mark William Covington, Christophe Daniel Mihalcea
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Abstract
A data writing system includes an array of cells for storing data and a write transducer that moves over a selected cell in the array of cells. The write transducer includes a writer producing a write magnetic field that intersects the selected cell. The write transducer also includes a plasmon resonator that is adjacent the writer. The plasmon resonator is shaped to receive lower power density radiation and to provide plasmon radiation at a higher power density to an optical spot intersecting with the selected cell. The plasmon radiation heats the selected cell above a write temperature.
Claims20
A data writing system, comprising:
- a medium including an array of cells for storing data;
- and
- a write transducer that is moveable relative to the medium to provide a movement of a bearing surface of the write transducer over a selected cell in the array, the write transducer comprising:
- a plasmon resonator that has a shape that directs lower power density radiation in a first plane to a side of a pin, and the plasmon resonator provides plasmon radiation from the pin at a higher power density to an optical spot intersecting with the selected cell, the plasmon radiation heating the selected cell above a write temperature;
- and
- a writer producing a write magnetic field that intersects the selected cell, the writer comprises a write coil and a write core, the write core having poles that define a write gap between the poles, a lower portion of the pin is positioned in the write gap, and the poles being aligned in a second plane that is transverse to the first plane such that the poles do not block the lower power density radiation from reaching the pin.
A write transducer that is moveable relative to the medium to provide a movement of a bearing surface of the write transducer over a selected cell in the array, the write transducer comprising:
- a plasmon resonator that has a shape that directs lower power density radiation in a first plane to a side of a pin, and the plasmon resonator provides plasmon radiation from the pin at a higher power density to an optical spot intersecting with the selected cell, the plasmon radiation heating the selected cell above a write temperature;
- and
- a writer producing a write magnetic field that intersects the selected cell, the writer comprises a write coil and a write core, the write core having poles that define a write gap between the poles, a lower portion of the pin is positioned in the write gap, the poles being aligned in a second plane that is transverse to the first plane such that the poles do not block the lower power density radiation from reaching the pin.
A data writing system, comprising:
- a medium including an array of cells for storing data;
- and
- a write transducer that is moveable relative to the medium to provide a movement of a bearing surface of the write transducer over a selected cell in the array, the write transducer comprising:
- a plasmon resonator that has a shape that directs lower power density radiation to a side of a pin, and the plasmon resonator provides plasmon radiation from the pin at a higher power density to an optical spot intersecting with the selected cell, the plasmon radiation heating the selected cell above a write temperature;
- and
- a writer producing a write magnetic field that intersects the selected cell, the writer comprises a write coil and a write core, the write core having poles that define a write gap between the poles, the pin is positioned in the write gap, the poles extending inwardly from a main write core body toward the pin such that the poles do not block the lower power density radiation from reaching the pin.
Dependencies are inferred from the claim text.