High-power laser light source for near-field optics and its application to high-density optical data storage

被引：160

作者：

Partovi, A ^{[1
]}

Peale, D ^{[1
]}

Wuttig, M ^{[1
]}

Murray, CA ^{[1
]}

Zydzik, G ^{[1
]}

Hopkins, L ^{[1
]}

Baldwin, K ^{[1
]}

Hobson, WS ^{[1
]}

Wynn, J ^{[1
]}

Lopata, J ^{[1
]}

Dhar, L ^{[1
]}

Chichester, R ^{[1
]}

Yeh, JHJ ^{[1
]}

机构：

[1] AT&T Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 11期

关键词：

D O I：

10.1063/1.124740

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A laser light source for high-resolution near-field optics applications with an output power exceeding 1 mW (10(4) times the power from previous sources) and small (300 nm square to less than 50 nm square) output beam size is demonstrated. The very-small-aperture laser (VSAL) tremendously expands the range of applications possible with near-field optics and increases the signal-to-noise ratios and data rates obtained in existing applications. As an example, 250-nm-diam marks corresponding to 7.5 Gb/in.(2) storage density have been recorded and read back in reflection and transmission on a rewritable phase-change disk at 24 Mb/s with a 250-nm-square aperture VSAL. VSALs potentially enable data storage densities of over 500 Gb/in.(2) (up to 100 times today's magnetic or optical storage densities). (C) 1999 American Institute of Physics. [S0003-6951(99)04734-8].

引用

页码：1515 / 1517

页数：3

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