The effect of 1D magneto-photonic crystal defect mode on Faraday rotation

Jalali, Tahmineh; Hessamodini, Meliheh

doi:10.1016/j.ijleo.2015.07.194

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…For a z-axis uniformly magnetized medium, the symmetry reduces to one axis. Therefore, the permittivity tensor of magnetic material is described as a sum of symmetric and asymmetric tensors in the following form [21,22]:…”

Section: Theory and Modelmentioning

confidence: 99%

Enhancement of Faraday rotation in defect modes of one-dimensional magnetophotonic crystals

Jalali

Gharaati

Rastegar

2019

Materials Science-Poland

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In this paper, employing of one-dimensional magnetophotonic crystals in infrared wavelengths range is considered. For this purpose, magnetophotonic multilayer structures, composed of magnetic defect layer surrounded by dielectric and MO Bragg mirrors, have been proposed. Ce:YIG with an optical thickness in the range of 0 to λ s was used as a magnetic material. By using four by four transfer matrix method, the transmittance values and Faraday rotation (FR) angles of these structures were computed. The electric field distribution was obtained by Finite Element Method (FEM). By investigation of transmittance and FR angle of magnetophotonic crystals, it was possible to design the optimized structures with a rotation larger than 30 degrees and high transmittance. Such structures with a few micrometer thickness and fast magneto-optical (MO) responses have the potential to be used in MO devices like integrated photonic elements and sensors.

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Section: Theory and Modelmentioning

confidence: 99%

Enhancement of Faraday rotation in defect modes of one-dimensional magnetophotonic crystals

Jalali

Gharaati

Rastegar

2019

Materials Science-Poland

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Magnetic field induced multichannel tunable filter properties of photonic band gap materials

Aly

Awasthi

Mohamed

et al. 2021

IOP Conf. Ser.: Mater. Sci. Eng.

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we have explored the tunable multichannel characteristics of one-dimensional (1D) plasma photonic structure in presence of static magnetic field applied externally parallel and anti-parallel to the direction of propagation under normal incidence. We have theoretically examined the transmission characteristics of the binary photonic design consisting of alternate layers of CaF2 and magnetic cold plasma layers by means of transfer matrix method (TMM) which is amongst the one of the popular techniques for simulating 1D multilayer periodic structures based on MATLAB. The proposed structure possess N-1 number of distinct transmission peaks, each of unit transmission called as transmission channels in transmission spectra for given the number of periods N > 1. In this study N varies from 2 to 6 in steps of 1 to get 1 to 5 transmission channels respectively. Further we have also investigated how these transmission channels can be repositioned inside PBG by applying the static magnetic field (B) externally under right hand polarization (RHP) and lift hand polarization (LHP) configurations for given N at B = 0T, 0.02T, 0.04T and 0.06T. The reason behind the existence of these transmission channels is due to the superposition of evanescent and propagating waves inside plasma and dielectric layers respectively. The existence of these transmission channels inside PBG is different from the transmission bands which are formed due to the interference of forward and backward propagating waves. Besides this the tuning sense of the transmission channels at fixed B applied parallel or anti parallel to direction of periodicity, by changing the angle of incidence corresponding to TE and TM polarization case has also been examined to get some more useful and interesting tunable multichannel characteristics of the current design which cannot be obtained in conventional PPCs.

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Analysis of tunable Faraday rotation angle produced by 1D photonic crystals doped with InSb in the terahertz regime

Zhang

Wang

et al. 2021

Appl. Opt.

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Simple periodic one-dimensional (1D) common photonic crystals (PCs) doped with InSb are proposed to research the Faraday rotation (FR) effect by applying a 4 × 4 transfer matrix method. Analysis indicates that the given 1D PCs can realize a giant FR angle. The influences of the properties of InSb (magnetic induction intensity, temperature, and the length of the InSb layer) and the repeat number of the structure on the FR are investigated due to the tunability of InSb and the features of the structure. Through calculation, it is found that, by adjusting these parameters, we can clearly observe the movement of the extreme values of the FR angle. In addition, the numerical results show that when the magnetic induction intensity and the repeat number of the structure are changed, the FR angle will be significantly altered at the fixed extreme frequency point. Specifically, if the temperature and the thickness of InSb layer are altered, the extreme value of the FR and the frequency point where it happens also will change. We believe these obtained results can provide ideas to design optical isolators and optical switches.

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The effect of 1D magneto-photonic crystal defect mode on Faraday rotation

Cited by 3 publications

References 18 publications

Enhancement of Faraday rotation in defect modes of one-dimensional magnetophotonic crystals

Enhancement of Faraday rotation in defect modes of one-dimensional magnetophotonic crystals

Magnetic field induced multichannel tunable filter properties of photonic band gap materials

Analysis of tunable Faraday rotation angle produced by 1D photonic crystals doped with InSb in the terahertz regime

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