Fourier magnetic imaging
journal contributionposted on 16.03.2012, 00:00 by T. Verduci, C. Rufo, A. Berger, V. Metlushko, B. Ilic, P. Vavassori
We present a methodology for the extraction of the spatial Fourier components of the magnetization proﬁle for an array of nanosized magnetic objects, from diffracted magneto optic Kerr effect measurements. The ﬁeld dependent magnetization conﬁguration in the unit cell is retrieved by inverse Fourier transform and compared with the predictions of micromagnetic simulations. The comparison demonstrates that the methodology is a powerful optical tool for lens-less diffraction-limited optical imaging of the collective magnetic behavior of nano-structures.