In 2004, we did research in various areas in electromagnetics and optoelectronics. In antenna research, progress was made in reconfigurable antennas, antenna arrays, and antennas for wireless and various sensing applications. In computational electromagnetics, advances were made in scattering from periodic structures, and multi-scale calculations in both time and frequency domains, as well as l...

We continue our study [R. Aylwin, C. Jerez-Hanckes, Schwab and J. Zech, Domain uncertainty quantification in computational electromagnetics, SIAM/ASA Uncertain. Quant. 8 (2020) 301–341] of the numerical approximation time-harmonic electromagnetic fields for Maxwell lossy cavity problem uncertain geometries. adopt same affine-parametric shape parametrization framework, mapping physical domains t...

Optimization using finite element analysis and the adjoint variable method to solve engineering problems appears in various application areas. However, best of authors’ knowledge, there is a lack detailed explanation on implementation context electromagnetic modeling. This paper aimed provide simplest possible general framework. Then, an extended offered electromagnetism. A discrete design meth...

We show that an electromagnetic (EM) wave undergoes negative refraction at the interface between a positive and negative refractive index material, the latter being a properly chosen photonic crystal. Finite-difference time-domain (FDTD) simulations are used to study the time evolution of an EM wave as it hits the interface. The wave is trapped temporarily at the interface, reorganizes, and, af...

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We present computational results using CORAL, a parallel, three-dimensional, nonlinear magnetostatic code based on a volume integral equation formulation. A key feature of CORAL is the ability to solve, in parallel, the large, dense systems of linear equations that are inherent in the use of integral equation methods. Using the Chameleon and PSLES libraries ensures portability and access to the...