This study presents experimental and theoretical evidence of the Mie resonance effect in the terahertz range using Fe3O4/Kerosene ferrofluid. The complex refractive indices at 0.5 THz were found to change significantly and rapidly with an increase in magnetic field strength. A prominent absorption peak at 0.5 THz was observed in transmittance and absorption measurements, corresponding to a magnetic field intensity of 178.0 mT. This phenomenon can be attributed to the adjustment of particle spacing, leading to resonance under different magnetic field conditions. These findings hold great potential in advancing the development of magneto-optical THz modulators for imaging and communication applications.
We present experimental and theoretical evidence demonstrating the Mie resonance effect in the terahertz (THz) range, utilizing Fe3O4/Kerosene ferrofluid. Our findings indicate a significant and rapid change in the complex refractive indices at 0.5 THz with an increase in the magnetic field strength. Moreover, we observed a prominent absorption peak at 0.5 THz in transmittance and absorption coefficient measurements, corresponding to a magnetic field intensity of 178.0 mT. This phenomenon occurs due to the adjustment of particle spacing, leading to resonance under different magnetic field conditions. These research results hold immense potential in advancing the development of magneto-optical THz modulators for imaging and communication applications.
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