SCANNING NEAR-FIELD OPTICAL MICROSCOPE FOR THE IMAGING OF MAGNETIC DOMAINS IN OPTICALLY OPAQUE MATERIALS

被引：103

作者：

SILVA, TJ ^{[1
]}

SCHULTZ, S ^{[1
]}

WELLER, D ^{[1
]}

机构：

[1] IBM CORP,ALMADEN RES CTR,SAN JOSE,CA 95120

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 06期

关键词：

Cobalt - Imaging techniques - Interferometers - Light polarization - Light scattering - Magnetic domains - Magnetooptical effects - Optical materials - Optical variables measurement - Platinum - Superlattices;

D O I：

10.1063/1.112261

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We describe a scanning near-field optical microscope capable of magnetic imaging in optically opaque materials. The near-field probe is a approximately 30 nm Ag particle, optically excited near the surface plasmon resonance frequency. The separation of the probe and sample is regulated by a Newton ring interferometer. The polarization rotation of the scattered light due to near-field magneto-optic interactions is measured. A two-dimensional image is presented of thermomagnetically recorded magnetic domains in a perpendicularly magnetized Co/Pt multilayer material with 0.5-mum-diam domains at one micrometer spacing. Images suggest a resolution of <100 nm.

引用

页码：658 / 660

页数：3

共 16 条

[1] SUPER-RESOLUTION APERTURE SCANNING MICROSCOPE [J].