Journal ArticleDOI
Electromagnetic dyadic Green's function in spherically multilayered media
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In this paper, a spectral-domain dyadic Green's function constructed for defining the electromagnetic fields in spherically multilayered media is considered by assuming that distribution and location of current sources are arbitrary.Abstract:
A spectral-domain dyadic Green's function constructed for defining the electromagnetic fields in spherically multilayered media is considered by assuming that distribution and location of current sources are arbitrary. The scattering dyadic Green's function in each layer is constructed in terms of the spherical vector wave functions by applying the method of scattering superposition. The coefficients of the scattering dyadic Green's functions, based on the coupling recurrence equations satisfied by the coefficient matrix, are derived and expressed in terms of the equivalent reflection and transmission coefficients. The general solution has been applied to specific geometries, e,g., two-, three- and four-layered media that are frequently employed to model the practical problems, and the coefficients of the scattering dyadic Green's functions are presented. >read more
Citations
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Implanted antennas inside a human body: simulations, designs, and characterizations
Jaehoon Kim,Yahya Rahmat-Samii +1 more
TL;DR: In this article, the authors applied the spherical dyadic Green's function (DGF) expansions and finite-difference time-domain (FDTD) code to analyze the electromagnetic characteristics of dipole antennas and low-profile patch antennas implanted in the human head and body.
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Spontaneous emission spectra and quantum light-matter interactions from a strongly coupled quantum dot metal-nanoparticle system
TL;DR: In this paper, the quantum optical properties of a quantum-dot dipole emitter coupled to a finite-size metal nanoparticle using a photon Green-function technique that rigorously quantizes the electromagnetic fields were investigated.
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Electromagnetic dyadic Green's function in cylindrically multilayered media
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TL;DR: In this paper, a spectral-domain dyadic Green's function for electromagnetic fields in cylindrically multilayered media with circular cross section is derived in terms of matrices of the cylindrical vector wave functions.
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Multipolar origin of bound states in the continuum
Z. F. Sadrieva,Kristina Frizyuk,Mihail Petrov,Yuri S. Kivshar,Yuri S. Kivshar,Andrey Bogdanov +5 more
TL;DR: In this article, the authors proposed an approach to explain the physics of bound photonic states embedded in the radiation continuum, and provided a method for designing high-quality resonant photonic systems based on the physical mechanism of formation of such nonradiating states in terms of multipolar modes generated by isolated meta-atoms.
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Closed-form Green's functions for cylindrically stratified media
Cagatay Tokgoz,G. Dural +1 more
TL;DR: In this paper, a numerically efficient technique was developed to obtain the spatial-domain closed-form Green's functions of the electric and magnetic fields due to z- and /spl phi/-oriented electric sources embedded in an arbitrary layer of a cylindrical stratified medium.
References
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Journal ArticleDOI
Microwave thermal emission from a stratified medium with nonuniform temperature distribution
TL;DR: In this paper, the brightness temperature of a stratified medium with inhomogeneous permittivities and non-uniform temperature profiles is solved using the dissipation-fluctuation approach.
Journal ArticleDOI
On the eigenfunction expansion of dyadic Green's functions
TL;DR: In this article, the singular behavior of the eigenfunction expansion of the dyadic Green's function was not correctly formulated in my book and the correct expressions were given here and an improved method for deriving the residue series is presented.
Journal ArticleDOI
Dyadic green’s functions for layered anisotropic medium
Jay Kyoon Lee,Jin Au Kong +1 more
TL;DR: The dyadic Green's functions for unbounded and layered anisotropic media have been obtained in this article, where the authors assume that the anisometric medium is assumed to be tilted uniaxial.
Journal ArticleDOI
Antenna radiation in the presence of a chiral sphere
Nader Engheta,Marek W. Kowarz +1 more
TL;DR: In this article, the radiation emitted by electromagnetic sources placed both inside and outside of a homogeneous sphere of chiral media is studied using an exact formulation, and the radiated fields and radiation resistance are examined for a dipole located at the center of the chiral sphere.
Journal ArticleDOI
Spectral-domain dyadic Green’s function in layered chiral media
TL;DR: In this article, a spectral-domain dyadic Green's function formulation defining the fields in a multilayer chiral medium resulting from the arbitrary distribution of sources is presented, where the constitutive parameters and the chirality of each layer are assumed to be different.