Eur. Phys. J. AP
Volume 5, Number 3, March 1999
|Page(s)||289 - 295|
|Published online||15 March 1999|
Magneto-optical Faraday imaging with an apertureless scanning near field optical microscope*
Laboratoire de Nanotechnologie et d'Instrumentation Optique, Université de technologie
de Troyes, 12 rue Marie Curie,
B.P. 2060, 10010 Troyes Cedex, France
2 Laboratoire Louis Néel (CNRS), 25 avenue des Martyrs, B.P. 166, 38042 Grenoble Cedex 9, France
Corresponding author: email@example.com
Revised: 23 October 1998
Accepted: 19 November 1998
Published online: 15 March 1999
We have developed an apertureless Scanning Near field Optical Microscope (SNOM) in transmission, devoted to near field magneto-optics. Our apertureless SNOM combines an inverted optical microscope, which has been adapted to Faraday effect imaging, with a commercial stand-alone Scanning Probe Microscope, used in Atomic Force Microscope (AFM) mode. Two different probes are validated as apertureless SNOM tips: a home-made etched tungsten wire and a commercial AFM silicon probe. We present and analyze preliminary images of the doMayn structure in iron garnets. They indicate a SNOM resolution clearly in the sub-micrometric range. Besides, the near field magneto-optical image presents some unexpected features, not revealed in far field images.
PACS: 07.79.Fc – Near-field scanning optical microscopes / 75.70.Kw – DoMayn structure (including magnetic bubbles) / 78.20.Ls – Magnetooptical effects
© EDP Sciences, 1999
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