ELECTROMAGNETIC WAVES RADIATOR WITH CONTROLLED CHARACTERISTICS

Electromagnetic Waves Propagation Characteristics in Superconducting Photonic Crystals

Photonic crystals (PCs) are structures with periodically modulated dielectric constants whose distribution follows a periodicity of the order of a fraction of the optical wavelength. Since the first pioneering work in this field, many new interesting ideas have been developed dealing with one-dimensional (1D), two-dimensional (2D), and threedimensional (3D) PCs. Researchers have proposed many n...

Electromagnetic Waves in Media with Ferromagnetic Losses

The operation of a wide variety of applications in today’s modern society are heavily dependent on the magnetic properties of ferromagnetic materials and their interaction with electromagnetic fields. The understanding of these interactions and the associated loss mechanisms is therefore crucial for the improvement and future development of such applications. This thesis is concerned with elect...

Imaging with Electromagnetic Waves in Terminating Waveguides

Abstract. We study an inverse scattering problem for Maxwell’s equations in terminating waveguides, where localized reflectors are to be imaged using a remote array of sensors. The array probes the waveguide with waves and measures the scattered returns. The mathematical formulation of the inverse scattering problem is based on the electromagnetic Lippmann-Schwinger integral equation and an exp...

Diffraction of Electromagnetic Waves

The general method to obtain solutions of the Maxwellian equations from scalar representatives is developed and applied to the diffraction of electromagnetic waves. Kirchhoff’s integral is modified to provide explicit expressions for these representatives. The respective integrals are then evaluated using the method of stationary phase in two dimensions. Hitherto unknown formulae for the polari...

Phs 342 : Electromagnetic Waves