Light delivery techniques for heat-assisted magnetic recording

被引：72

作者：

Challener, WA

McDaniel, TW

Mihalcea, CD

Mountfield, KR

Pelhos, K

Sendur, IK

机构：

[1] Seagate Res, Pittsburgh, PA 15222 USA

[2] Seagate Res, Fremont, CA 94538 USA

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2003年 / 42卷 / 2B期

关键词：

magnetic recording; hybrid recording; thermomagnetic recording; near field; solid immersion lens; surface plasmon; bow tie antenna; superparamagnetic limit;

D O I：

10.1143/JJAP.42.981

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Heat-assisted magnetic recording (HAMR), also known as hybrid recording, has been, proposed to enable storage densities greater than 1 Tb/in(2) in hard disc drives while circumventing the superparamagnetic limit. Light is delivered in the near field to the recording medium to heat just the spot which is to be recorded. Techniques based on apertures, antennas, waveguides,, and solid immersion lenses have been suggested for delivering substantial amounts of optical power into subwavelength spots in the near field. A practical transducer for HAMR may require a combination of techniques.

引用

页码：981 / 988

页数：8

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