D.R. Fredkin, T.R. Koehler, et al.
Journal of Applied Physics
We describe a scanning near-field optical microscope capable of magnetic imaging in optically opaque materials. The near-field probe is a ∼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-μm-diam domains at one micrometer spacing. Images suggest a resolution of <100 nm.
D.R. Fredkin, T.R. Koehler, et al.
Journal of Applied Physics
C. Salling, R. O'Barr, et al.
Journal of Applied Physics
Dieter Weller, Mary F. Doerner
Annual Review of Materials Science
J.F. Smyth, S. Schultz, et al.
Journal of Applied Physics