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Transmitted signal detection of optical disks with a superresolution near-field structure (1999)

Nakano, Takashi

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 75 (1999), S. 151-153

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: We observed transmitted signals of phase change marks recorded in super-resolution near-field structure (super-RENS) disks under high speed disk rotation. The observed minimum mark size was 81 nm and the carrier to noise ratio was about 6 dB at a constant linear velocity of 4.8 m/s. The mark size was far beyond the diffraction limit of an optical pickup with a wavelength of 635 nm and a numerical aperture of 0.6. It was clear that near-field scattering actually occurred in super-RENS disks. © 1999 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.124302

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