Open AccessCoherent optical spectroscopy characterization of the magnetic properties of oriented Fe3O4 nanoparticles
Author(s) -
E. Taskova,
E. Alipieva,
Svetoslav Kolev,
T. Koutzarova,
D. V. Brazhnikov
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2240/1/012022
Subject(s) - magnetic field , materials science , miniaturization , microwave , magnetic nanoparticles , spectroscopy , nanoparticle , characterization (materials science) , magnetite nanoparticles , reflection (computer programming) , magnetometer , nuclear magnetic resonance , optoelectronics , analytical chemistry (journal) , optics , nanotechnology , chemistry , physics , chromatography , quantum mechanics , computer science , programming language
Magnetite (Fe 3 O 4 ) nanoparticles are widely used in microwave components, such as microwave absorbers and anti-reflection coatings. Their magnetic properties are important for these applications. In this work, the weak magnetic field created by the Fe 3 O 4 nanoparticles was estimated using a coherent-spectroscopy all-optical method for measurement of weak magnetic fields. Both the magnitude and the direction of the magnetic field were evaluated through the position and amplitude of a magneto-optical resonance obtained in a paraffin-coated sensor cell containing Rb vapors. A pump-probe scheme was used to prepare a high-contrast magneto-optical resonance. Different possible geometries related to this concept are discussed, including sensor miniaturization.