Dispersion properties of one-dimensional magnetized ferrite photonic crystals in transverse magnetization configuration for transverse magnetic modes

Sharma, Y. K.; Prasad, Surendra

doi:10.1140/epjd/e2018-90105-0

Cited by 4 publications

(5 citation statements)

References 22 publications

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“…The thicknesses of YIG 1 layer, YIG 2 layer, YIG 3 layer, layer D, and layer E are d 1 = 1.2 µm, d 2 = 4.84 µm, d 3 = 3.84 µm, d 4 = 1.12 µm, and d 5 = 3.3 µm, respectively. Dielectric constants of ferrite layers are [37]. n A , n B and n C will be analyzed in the follow-up, which separately denotes effective refractive indices of the YIG 1 layer, the YIG 2 layer, and the YIG 3 layer.…”

Section: Theoretical Model and Formulationmentioning

confidence: 99%

Nonreciprocal Goos–Hänchen effect at the reflection of electromagnetic waves from the one-dimensional magnetized ferrite photonic crystals

Shi¹,

Wan²,

Zhang³

2022

J. Opt.

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Leveraging the traditional transfer matrix and stationary phase methods, the nonreciprocal Goos–Hänchen (GH) phenomena for the electromagnetic waves reflected at the surface of the one-dimensional photonic crystals with ferrite layers and dielectric layers are investigated numerically. The GH effect (the peak of the lateral shift value up to over 200 times the wavelength) produced by the forward and backward incidence of electromagnetic waves under the transverse electric wave is identified to arise at significantly different frequency positions in the terahertz (THz) regime, whereas the transverse magnetic wave produces almost no GH effect under the same condition. Based on such a nonreciprocal phenomenon, the effect of the incident angle on the nonreciprocal properties is covered initially, for every 20° increase in the angle of the incident TE wave, the frequency span at which the two GH shift peaks emerge will decrease by 0.1 THz. In addition, the thicknesses of dielectric layers are modified separately, and distinct sensitivities of them to the nonreciprocal phenomenon are displayed. Lastly, through the regulation of the external magnetic fields of ferrite layers, the nonreciprocal effect can be selectively presented in multiple forms, which provides a novel pathway to design nonreciprocal sensors.

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Section: Theoretical Model and Formulationmentioning

confidence: 99%

Nonreciprocal Goos–Hänchen effect at the reflection of electromagnetic waves from the one-dimensional magnetized ferrite photonic crystals

Shi¹,

Wan²,

Zhang³

2022

J. Opt.

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“…In the presence of a high-frequency magnetic field, the spin electron magnetic moment does not necessarily move in phase with the external magnetic field. In this case, the internal magnetization strength M of any ferromagnetic material is not necessarily parallel or in-phase with the applied magnetic field H. The total magnetic field strength can be expressed as [31,32] :…”

Section: Simulation Model and Formulationmentioning

confidence: 99%

“…In this case, the internal magnetization strength M of any ferromagnetic material is not necessarily parallel or in‐phase with the applied magnetic field H . The total magnetic field strength can be expressed as [ 31,32 ] :

\begin{equation} B = {\mu _0}H + M \end{equation}

…”

Section: Simulation Model and Formulationmentioning

confidence: 99%

The Absorption Properties of One‐Dimensional Spherical Photonic Crystals Based on Magnetized Ferrite Materials

et al. 2022

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Based on a spherical coordinate system and Maxwell's set of equations, the calculation formulas of one‐dimensional (1‐D) magnetized ferrite spherical photonic crystals (MFSPCs) are obtained and treated with the solution method of the spherical Bessel equations. Combined with the conventional transmission matrix method, expressions for the absorptance, reflectance, and transmittance of the 1‐D MFSPCs are given. 1‐D MFSPCs consisting of the general dielectric and Yttrium iron garnet (YIG) are also designed to verify the correctness of the conclusions. Variables such as external magnetic field, incidence angle, initial radius, and YIG thickness effects on the features of such 1‐D MFSPCs are also discussed. The transformation of the external magnetic field has a linear relationship with the position of the absorption band (AB). The three variables of incidence angle, initial radius, and YIG thickness have a substantial influence on the width and position of the AB, which can be adjusted according to the actual demand and are of high application significance. The results of this study can be helpful for the design of multifunctional absorbers and radome.

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“…We can also express ferrite permeability for transverse magnetization case [23][24]. We obtain transfer matrix elements for the case of transverse magnetization configuration for NI ferrite sublayer of unit cell for TM mode [21] as follows:…”

Section: Theoretical Formulation and Approachmentioning

confidence: 99%

“…Very recently, Sharma and Prasad [20][21] have investigated the dispersion properties of EM waves in magnetized 1-D FPhCs structures for transverse electric (TE) and transverse magnetic (TM) modes for various field configurations such as longitudinal [20] and transverse magnetization configurations [21]. They have also explored the EM wave propagation in magnetized 1-D FPhCs structures for TE mode in transverse magnetization configuration [22].…”

Section: Introductionmentioning

confidence: 99%

Dispersion Characteristics of Electromagnetic Wave in Magnetized One Dimensional Ferrite Photonic Crystals with Mixed Field Configuration

Sharma

Prasad

2021

Preprint

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The dispersion characteristics and phase index of electromagnetic waves in two types of magnetized one dimensional ferrite photonic crystals with mixed field configuration are studied for transverse magnetic mode. The dispersion equation and formula for phase index are derived using transfer matrix method. It is found that in type-1 & type-2 magnetized one dimensional ferrite photonic crystals, photonic band gaps (PBGs) show dependence on HOYIG and HONI respectively. The PBGs corresponding to thinner YIG layer are at higher frequency side at fixed. The variation of frequency-filling factor shows that PBGs occur in the form of lobe for both types. It is observed that the phase index is strongly influenced by external magnetic fields, and filling factor. It is demonstrated that PBGs in phase index occur in the form of lobes at fixed. Also, with decrease in the magnitude of phase index, number of lobe increases. The phase index, field and frequency plots show that there are multiple peaks in the PBGs of phase index in the lower frequency.

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Dispersion properties of one-dimensional magnetized ferrite photonic crystals in transverse magnetization configuration for transverse magnetic modes

Cited by 4 publications

References 22 publications

Nonreciprocal Goos–Hänchen effect at the reflection of electromagnetic waves from the one-dimensional magnetized ferrite photonic crystals

Nonreciprocal Goos–Hänchen effect at the reflection of electromagnetic waves from the one-dimensional magnetized ferrite photonic crystals

The Absorption Properties of One‐Dimensional Spherical Photonic Crystals Based on Magnetized Ferrite Materials

Dispersion Characteristics of Electromagnetic Wave in Magnetized One Dimensional Ferrite Photonic Crystals with Mixed Field Configuration

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