Imaging of magnetic domain structures using optical techniques

Wayne Dickson; Satoshi Takahashi; Robert Pollard; Ron Atkinson; Anatoly V. Zayats

doi:10.1117/12.499187

29 April 2003 Imaging of magnetic domain structures using optical techniques

Wayne Dickson, Satoshi Takahashi, Robert Pollard, Ron Atkinson, Anatoly V. Zayats

Proceedings Volume 5118, Nanotechnology; (2003) https://doi.org/10.1117/12.499187
Event: Microtechnologies for the New Millennium 2003, 2003, Maspalomas, Gran Canaria, Canary Islands, Spain

Abstract

High-resolution optical techniques for the imaging of magnetic domains in ferromagnetic materials such as confocal microscopy and scanning near-field optical microscopy are discussed. The imaging capabilities of different techniques and image formation are investigated in the case of in-plane as well as out-of-plane magnetic anisotropy in different polarisation configurations. It is shown that the magneto-optical resolution of near-field measurements depends on the film thickness and is limited by the diffraction on magnetic domains throughout the film. For thin magnetic films, sub-wavelength resolution can be achieved. High-resolution optical imaging is required for characterisation of the micro-magnetic and magneto-optical properties of novel magnetic materials in order to adopt a bottom-up approach in the search for new materials with improved characteristics.

Citation Download Citation

Wayne Dickson, Satoshi Takahashi, Robert Pollard, Ron Atkinson, and Anatoly V. Zayats "Imaging of magnetic domain structures using optical techniques", Proc. SPIE 5118, Nanotechnology, (29 April 2003); https://doi.org/10.1117/12.499187

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