Plasmon Enhanced Faraday Rotation in Fe3O4/Ag Ferrofluids for Magneto Optical Sensing Applications

Electric Current of Ferrofluid Depending on Temperature

“…When the polarized light perpendicular to the field direction propagation through MF placed in a field, the birefringence and dichronism phenomena could be observed [8][9][10]. If MF samples are placed in magnetic field direction, and the polarization light propagation paralleled to the magnetic field the Faraday affect may be appeared [11][12][13]. Due to the many interesting characteristics of MF, it has already used extensively at temperature sensor designing [14], photonic crystal magnetic field sensor designing [15], lubricant [16], generator [17], et al The electrical conductivity of MF in vary field is carrying out nowadays.…”

“…Substituting ( 10) into ( 6), the equation between velocity of movement polarized particle and absolute temperature is finally obtained as follow: In equation (11), the quantity of q is in the order of magnitude of unit charge ( C q . In MF-Fe3O4-W, s mpa.…”

Broadband Enhancement of Faraday Effect Using Magnetoplasmonic Metasurfaces

“…Despite these applications, the small magnitude of the specific Faraday rotation in the majority of MO materials limits its applicability and prevents miniaturization of the MO devices [20]. Hence, enhancement of the Faraday effect has become an attractive research topic and different approaches such as using suspended plasmonic particles [21,22], core-shell magnetoplasmonic nanoparticles [23,24], magnetoplasmonic crystals [25][26][27], magnetophotonic crystals [28][29][30], and graphene infiltration [31] have been reported in this regard.…”