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READBACK OF INFORMATION FROM A MOVING FERROELECTRIC RECORDING MEDIUM BY MEANS OF A NEAR-FIELD OPTICAL TRANSDUCER AND 2ND HARMONIC GENERATION IN THE MEDIUM
READBACK OF INFORMATION FROM A MOVING FERROELECTRIC RECORDING MEDIUM BY MEANS OF A NEAR-FIELD OPTICAL TRANSDUCER AND 2ND HARMONIC GENERATION IN THE MEDIUM
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机译:通过近场光学传感器和介质中的第二次谐波生成从移动的铁电记录介质中读取信息
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摘要
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.
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