MAGNETOOPTIC CONVERTER, METHOD OF MAKING MAGNETOOPTIC CONVERTER AND METHOD OF VIEWING INHOMOGENEOUS MAGNETIC FIELD Russian patent published in 2010 - IPC G02F1/09 

FIELD: physics.

SUBSTANCE: magnetooptic converter is made in form of a magnetic film deposited on a transparent substrate. The latter is made in form of one or more layers of 3-d metals, mainly Fe and Co. Total thickness of the film is 1000±100 A. Metals in the film in polycrystalline or amorphous form. The 3-d metals in the film are in separate form or in form of mixtures, mainly in form of a Fe-Co mixture with weight ratio of said elements equal to 1:1 respectively. The magnetic film is made with addition of rare-earth elements, mainly Gd in amount of 15-25% of the atomic composition of the film. The preferred film contains a Gd-Co-Fe mixture in amorphous form. The substrate is made from glass with thickness of 0.1-2 mm or in form of a polished monocrystalline silicon plate with preferred orientation (100).

EFFECT: high sensitivity when viewing an inhomogeneous magnetic field, low cost of the magnetooptical converter and simplification of its manufacturing method.

6 cl, 5 dwg, 2 ex