Abstract
The images of magnetic and nonmagnetic nanoparticles obtained by scanning near-field microscopy in the photon collection mode are numerically simulated. A theoretical approach that uses tensor electrodynamic Green’s functions to find the optical near field in a given observation scheme is considered. Typicalimages of nanoparticles with various shapes are obtained by numerical simulation. Subject to boundary conditions, the plane of polarization is shown to change at topographic features (edges and angles) of objects studied. This makes the observation of the magnetic structure of a nanoparticle with a magnetooptic method difficult. The near-field study of the magnetization distribution in homogeneous thin films appears to be more effective, since the rotation of plane of polarization is associated primarily with the magnetic properties of the sample in this case.
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 73, No. 1, 2003, pp. 3–9.
Original Russian Text Copyright © 2003 by Belotelov, Pyatakov, Zvezdin, Kotov, Logginov.
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Belotelov, V.I., Pyatakov, A.P., Zvezdin, A.K. et al. Numerical simulation of nanoparticle images in scanning near-field optical microscopy. Tech. Phys. 48, 1–6 (2003). https://doi.org/10.1134/1.1538719
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DOI: https://doi.org/10.1134/1.1538719