METHOD OF MEASURING MAGNETOOPTICAL EFFECTS in situ Russian patent published in 2015 - IPC G01R33/12 G01N21/21 

FIELD: physics.

SUBSTANCE: analysed sample is illuminated with a linearly polarised light beam and change in polarisation upon reflection is measured using separation of the reflected beam into p- and s-components with amplitude and phase decomposition to obtain four light beams at the output. An alternating magnetic field is applied to the analysed sample during measurement. The polariser is fixed at position P=0 when measuring the longitudinal Kerr effect and analysers in amplitude and phase channels A_1,2=45°. Remagnetisation of the sample is carried out using a rotating permanent magnet and the polarisation rotation value α, which is proportional to the projection of magnetisation intensity on the plane of incidence of light, is determined using a formula.

EFFECT: high measurement accuracy and information value.

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