Abstract
Magneto-optical responses and the potential for tunability when changing the variables of a one-dimensional defected magnetized plasma photonic crystal have been studied using a transfer matrix method for operation in the mm-range wavelength region. The effect of the number and dielectric defect layer thickness as well as the intensity and declination angle of magnetic field on transmittance, Faraday rotation, and its ellipticity has been investigated. The results demonstrate the ability to alter the resonant modes frequency at multiple levels of precision. The structures with four, six, and eight defect layers have been investigated. The number of defect dielectric layers changes the number of resonance modes. A single defect mode appears within the photonic bandgap with four defect dielectric layers while two defect modes were observed with six layers, and three modes with eight layers. An increase in magnetic field declination decreased the Faraday rotation intensity and width of Faraday resonance mode.
Highlights
This report intends to explore the magneto-optical effects exhibited by EM waves that propagate through photonic crystals that are under varying degrees of magnetic field declination
The magnetisation of the plasma photonic crystal enables tunability of properties of the plasma layers, causing significant alteration of the transmittance, reflectance, and magneto-optical effects that arise when incident EM waves are propagating through the designed crystal
The generated resonance modes within the photonic crystal allow the Faraday rotation and ellipticity effects to be studied
Summary
The direction and orientation of the magnetic field contributes towards the arrangement of the plasma layers, directly affecting the frequencies of light that can pass through the photonic bandgap These magnetophotonic crystals allow for the greatest amount of photonic bandgap modification. This report intends to explore the magneto-optical effects exhibited by EM waves that propagate through photonic crystals that are under varying degrees of magnetic field declination. To this end, a 4 by 4 transfer matrix method is employed to study the magneto-optical effects in a plasma photonic crystal, defected by a dielectric layer, under an external magnetic field with different declination angles.
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