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

被引：73

作者：

Nakano, T

Sato, A

Fuji, H

Tominaga, J

Atoda, N

机构：

[1] Natl Inst Adv Interdisciplinary Res, Adv Opt Memory Grp, Ibaraki, Osaka 3058562, Japan

[2] Minolta Co Ltd, Opt Technol Div, Osaka 5698503, Japan

[3] Sharp Corp, AVC Res Lab, Nara 6328567, Japan

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 02期

关键词：

D O I：

10.1063/1.124302

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. (C) 1999 American Institute of Physics. [S0003-6951(99)00528-8].

引用

页码：151 / 153

页数：3

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