Electromagnetic Wave Propagation in Random Waveguides

Electromagnetic Wave Propagation in Random Waveguides

Abstract. We study long range propagation of electromagnetic waves in random waveguides with rectangular cross-section and perfectly conducting boundaries. The waveguide is filled with an isotropic linear dielectric material, with randomly fluctuating electric permittivity. The fluctuations are weak, but they cause significant cumulative scattering over long distances of propagation of the wave...

Wave Propagation and Imaging in Random Waveguides

Wave Propagation in Random Waveguides with Long-Range Correlations

In this paper we consider an acoustic waveguide with random fluctuations of its sound speed profile. These random perturbations are assumed to have long-range correlation properties. In waveguides a monochromatic wave can be decomposed in propagating modes and evanescent modes, and the random perturbation couples all these modes. Using asymptotic analysis of the modecoupling mechanism we give a...

Effective dielectric tensor for electromagnetic wave propagation in random media

media M. C. Rechtsman and S. Torquato Department of Physics, Princeton University, Princeton, New Jersey 08544, USA Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA; Program in Applied and Computational Mathematics, Princeton, New Jersey 08544, USA; Princeton Institute for the Science and Technology of Materials, Princeton, New Jersey 08544, USA; Princeton Center ...

Electromagnetic Wave Propagation in Pulsar Magnetospheres

A new nonlinear electromagnetic wave mode in a magnetized plasma is predicted. Its existence depends on the interaction of an intense circularly polarized electromagnetic wave with a plasma, where quantum electrodynamical photon–photon scattering is taken into account. This scattering gives rise to a new coupling between the matter and the radiation. Specifically, we consider an electron–positr...