Analysis of the Field Focused by Hyperbolic Lens Embedded in Chiral Medium

Kayani, Tahir Mehmood; Mehmood, Muhammad Qasim; Mughal, Muhammad Junaid; Rahim, Tariq

doi:10.2528/pierm11062303

Cited by 6 publications

(3 citation statements)

References 19 publications

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“…GO is concerned only with the relatively high frequency component of the waveform, provided the ray tube does not vanish. However, there exist regions J(t) = 0 where ray tube shrinks to zero, called caustics and GO fails there [9]. This drawback of GO is overcome by Maslov's method.…”

Section: Geometrical Optics Approximation and Maslov's Methods In Dielmentioning

confidence: 99%

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Electromagnetic Field Transmitted by Dielectric Plano Convex Lens Placed in Chiral Medium

Ghaffar¹,

Naz²,

Naqvi³

2012

PIER

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Abstract-In this paper, a theoretical investigation of electromagnetic field transmission through dielectric plano convex lens placed in chiral medium is analyzed. The chiral medium is described electromagnetically by the constitutive relations D = (E + γ∇ × E) and B = µ(H + γ∇ × H). Transmission's coefficients for chiral-dielectric and dielectric-chiral interfaces are derived analytically. The analytical field expressions for right circularly polarized (RCP) and left circularly polarized (LCP) waves are obtained using Maslov's method. Numerical computations are made for the field patterns around the caustic region using Mathcad software to observe the effect of chirality parameter.

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Section: Geometrical Optics Approximation and Maslov's Methods In Dielmentioning

confidence: 99%

“…Their different polarization rotations give different mode of propagations [2]. Many researchers have studied the interaction of electromagnetic waves with chiral slabs and other possible structures of chiral materials [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Field Transmitted by Dielectric Plano Convex Lens Placed in Chiral Medium

Ghaffar¹,

Naz²,

Naqvi³

2012

PIER

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“…An object is called chiral if it cannot be superimposed on its mirror image by translations and rotations. Interaction of electromagnetic fields with chiral media has been the subject of many studies over the past decade and has led to the introduction of its wide application in different microwave devices [1][2][3][4][5][6][7][8][9][10][11][12] such as twist polarizer, polarization transformer, microwave radar absorbers, negative refraction, etc. Assuming a time harmonic field with e −jωt , the constitutive relations of isotropic and homogeneous chiral media are as follows [1]:…”

Section: Introductionmentioning

confidence: 99%

Reconstructing Constitutive Parameters of Inhomogeneous Planar Layered Chiral Media Based on the Optimization Approach

Zarifi¹,

Farahbakhsh²,

Abdolali³

et al. 2013

PIER M

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Abstract-This paper presents a frequency domain technique for reconstructing the constitutive parameters of inhomogeneous planar layered chiral media based on an optimization approach. The measured co-and cross-reflection and transmission coefficients are used to extract profiles of electromagnetic parameters of the inhomogeneous chiral media. To identify the functions of constitutive parameters of the chiral media, Fourier series expansions and Genetic Algorithm (GA) are utilized. Since the optimization problem is highly non-linear, enhanced GA in which a fuzzy system is used for improving the speed and accuracy of GA. The performance and feasibility of the proposed reconstruction method is proven using two typical examples.

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