DOI: 10.1063/1.1146658. A scanning near-field optical microscope for the imaging of magnetic domains in reflection

A scanning near-field optical microscope for the imaging of magnetic domains in reflection

10.1063/1.1146658

Crossref journal-article

AIP Publishing

Review of Scientific Instruments (317)

Abstract

The design and implementation of a scanning near-field optical microscope expressly intended for the imaging of magnetic domains in reflection with subwavelength resolution is described. The microscope employs ∼40 nm silver particles optically excited at the plasmon resonance as the near-field probes. Special attention is given to the Newton ring interferometer used to regulate the separation between the near-field probe and the sample. The results of two tests of the microscope performance are presented. The first is a measurement of the dependence of the near-field magneto-optic Kerr effect on probe/sample spacing for a longitudinally magnetized metallic thin film. The effect decreases rapidly with increasing separation with a length scale comparable to the probe size. The second is a series of images of a domain in a perpendicularly magnetized multilayer metallic film at different probe/sample spacings. The images indicate a persistent effect with increasing separation but diminishing resolution. Fundamental differences between the near-field magneto-optic Kerr effect for perpendicularly and longitudinally magnetized samples is discussed. An estimate is made as to the fundamental limit of resolution with this particular form of near-field microscopy.

Bibliography

Silva, T. J., & Schultz, S. (1996). A scanning near-field optical microscope for the imaging of magnetic domains in reflection. Review of Scientific Instruments, 67(3), 715â725.

Authors 2

T. J. Silva (first)
S. Schultz (additional)

References 38 Referenced 42

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Dates

Type	When
Created	23 years ago (July 26, 2002, 8:03 a.m.)
Deposited	1 year, 6 months ago (Feb. 7, 2024, 9:55 a.m.)
Indexed	11 months ago (Sept. 19, 2024, 10:52 a.m.)
Issued	29 years, 5 months ago (March 1, 1996)
Published	29 years, 5 months ago (March 1, 1996)
Published Print	29 years, 5 months ago (March 1, 1996)

Funders 0

None

BibTeX

@article{Silva_1996, title={A scanning near-field optical microscope for the imaging of magnetic domains in reflection}, volume={67}, ISSN={1089-7623}, url={http://dx.doi.org/10.1063/1.1146658}, DOI={10.1063/1.1146658}, number={3}, journal={Review of Scientific Instruments}, publisher={AIP Publishing}, author={Silva, T. J. and Schultz, S.}, year={1996}, month=mar, pages={715–725} }

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