System and method for reading data recorded on ferroelectric storage medium by means of a near-field transducer
AssigneeWestern Digital Technologies, Inc.
InventorsTakuya Matsumoto, Barry C. Stipe, Ikuya Tagawa, Roger W. Wood
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Abstract
According to one embodiment, a system includes a head, where the head includes: an optical signal source configured to emit a first optical signal, and a near-field transducer (NFT) configured to focus the first optical signal on a moving ferroelectric storage medium positioned below the head. The system also includes a detector operatively coupled to the head, where the detector is configured to detect a second optical signal generated in and reflected from the ferroelectric storage medium, and where the second optical signal has twice the optical frequency as the first optical signal.
Claims19
A system, comprising:
- a head, comprising:
- an optical signal source configured to emit a first optical signal, and
- a near-field transducer (NFT) configured to focus the first optical signal on a moving ferroelectric storage medium positioned below the head;
- and
- a detector operatively coupled to the head, the detector being configured to detect a second optical signal generated in and reflected from the ferroelectric storage medium, the second optical signal having twice the optical frequency as the first optical signal.
Dependencies are inferred from the claim text.