Capacity Increase in Radial Direction of Super-Resolution Near-Field Structure Read-Only-Memory Disc
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概要
- 論文の詳細を見る
We propose a novel super-resolution near-field structure (super-RENS) read-only-memory (ROM) disc with a narrow track pitch using a group tracking technique. The group tracking technique enables the tracking control of an optical disc because it consists of track pitch sizes that are less than the diffraction limit. The group tracking technique to increases capacity in the radial direction of the super-RENS ROM disc. By using this technique, carrier-to-noise ratio (CNR) was obtained at 33 dB and the minimum crosstalk level was $-23$ dB at the 100 nm pit length. A readout track was selected by controlling the offset level of the tracking error signal in a high definition digital versatile disc (HD-DVD) system. It was confirmed that the capacity of the super-RENS ROM disc with the group tracking structure was improved in the radial direction.
- 2007-06-30
著者
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Yamakawa Yuzo
Center For Applied Near-field Optics Research (can-for) National Institute Of Advanced Industrial Sc
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Shima Takayuki
Center For Applied Near-field Optics Research (can-for) Aist
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Kurihara Kazuma
Center For Applied Near-field Optics Research (can-for) National Institute Of Advanced Industrial Sc
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Shima Takayuki
Center for Applied Near-field Optics Research, CAN-FOR, National Institute of Advanced Industrial Science and Technology, AIST, Tsukuba Central 4, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan
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Tominaga Junji
Center for Applied Near-field Optics Research, CAN-FOR, National Institute of Advanced Industrial Science and Technology, AIST, Tsukuba Central 4, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan
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Tominaga Junji
Center for Applied Near Field Optics Research (CAN-FOR), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8562, Japan
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Yamakawa Yuzo
Center for Applied Near-field Optics Research, CAN-FOR, National Institute of Advanced Industrial Science and Technology, AIST, Tsukuba Central 4, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan
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