Complete nonuniform asymptotic expansion of Sommerfeld integral for dielectric half-space
IS Koh - IEEE Transactions on Antennas and Propagation, 2023 - ieeexplore.ieee.org
Generally, the Sommerfeld integral (SI) for a dielectric half-space is approximated based on
the steepest descent method. A higher order approximation of the integral requires higher …
the steepest descent method. A higher order approximation of the integral requires higher …
An appraisal of numerical approaches for a VED over the Earth or ocean
The numerical solution of the classical Sommerfeld problem is thoroughly discussed in this
work. In particular, the computation of the vertical electric field excited by a vertical electric …
work. In particular, the computation of the vertical electric field excited by a vertical electric …
On the far-zone electromagnetic field of a vertical Hertzian dipole over an imperfectly conducting half-space with extensions to plasmonics
New asymptotic formulas for the electromagnetic fields of a vertical Hertzian dipole over an
imperfectly conducting half-space are derived using two variants of the modified saddle …
imperfectly conducting half-space are derived using two variants of the modified saddle …
On the Sommerfeld half-space problem: Appraisal of approximate solutions with extensions to plasmonics
The classical Sommerfeld problem of a vertical electric dipole radiating over an imperfectly
conducting half-space is revisited. Two variants of the modified saddle-point integration …
conducting half-space is revisited. Two variants of the modified saddle-point integration …
Anisotropic mode excitations and enhanced quantum interference in quantum emitter-metasurface coupled systems
W Fang, Y Chen, Y Zeng, C Ou, G Li… - New Journal of …, 2022 - iopscience.iop.org
This study proposes a nanophotonic structure that supports quantum interference (QI)
between orthogonal decay channels in multilevel quantum emitters within the framework of …
between orthogonal decay channels in multilevel quantum emitters within the framework of …
Complete Nonuniform Asymptotic Expansion of Dyadic Green's Function for Dielectric Half-Space
IS Koh - IEEE Transactions on Antennas and Propagation, 2024 - ieeexplore.ieee.org
The dyadic Green's function (DGF) for a dielectric half-space is crucial to many
electromagnetic applications. Several analytical approximations of Green's function have …
electromagnetic applications. Several analytical approximations of Green's function have …
The evaluation of an asymptotic solution to the sommerfeld radiation problem using an efficient method for the calculation of sommerfeld integrals in the spectral …
A recently developed high-frequency asymptotic solution for the famous “Sommerfeld
radiation problem” is revisited. The solution is based on an analysis performed in the …
radiation problem” is revisited. The solution is based on an analysis performed in the …
On the computation of plane-wave impressed fields and far-zone fields of arbitrary current sources in planar multilayer dielectric and plasmonic media
A unified and succinct transmission line formulation is presented for the computation of the
plane-wave impressed fields and far-zone radiation fields due to arbitrary electric and …
plane-wave impressed fields and far-zone radiation fields due to arbitrary electric and …
Physical optics scattering by a PEC plate located vertically over a dielectric half-space
Analytical solution and numerical results are provided for the problem of plane wave
scattering by an electrically large Perfect Electric Conductor plate located vertically over a …
scattering by an electrically large Perfect Electric Conductor plate located vertically over a …
On the Deficiency of the First-Order Ott–Clemmow Saddle Point Method as Applied to the Sommerfeld Half-Space Problem
The accuracy of the first-order multiplicative (Ott–Clemmow) and additive (van der Waerden)
modified saddle point integration methods for the Sommerfeld problem of a vertical Hertzian …
modified saddle point integration methods for the Sommerfeld problem of a vertical Hertzian …