Signal Enhancement of Super Resolution Enhanced Near-Field Structure Disc by Silver Nano-Particles
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概要
- 論文の詳細を見る
We propose a carrier-to-noise ratio (CNR) increment method for a super resolution enhanced near-field structure (super-RENS) with silver nanoparticles. The silver nanoparticles were fabricated by the RF magnetron sputtering method. The mean diameters of the particles under as-deposited and 600°C annealed conditions were evaluated as 5 nm and 15 nm, respectively. The light absorption peak of the silver nanoparticles was adjusted to a laser wavelength of 405 nm for an optical disc system. The silver nanoparticles showed a higher absorption characteristic when they were annealed at above 500°C. In the case of a recording mark size of 50 nm, the CNR enhancement of the super-RENS with the silver nanoparticles was evaluated as 11 dB. This method using the silver nanoparticles provided a higher CNR increment in recording marks below the optical resolution limit.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-05-15
著者
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NAKANO Takashi
Center for Applied Near-Field Optics Research (CAN-FOR), National Institute of Advanced Industrial S
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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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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 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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Arai Tomofumi
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 305-8562, Japan
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Arai Tomofumi
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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