Magnetic field-aligned structures in current, density, and temperature are common features of the auroral ionospheric plasma. These structures both generate and transform low frequency waves in the plasma. The results of laboratory studies of two processes involving magnetic field-aligned density depletions ~striations! that play a role in auroral plasma dynamics are presented. The first proces...

A state of the art numerical tool has been developed to simulate the QsTj propagation and the absorption of coexisting diffemt types of waves in a tokamak geometxy. The code includes a numerical solution of the three-dimensional (R, Z, 0) toroidal wave equation for the electric field of the different waves in the WKBJ approximation. At each step of integration, the two-dimensional (VI!, v~ Fokk...

9 Broadband whistler waves in the frequency range 7-10 kHz and 15-19 kHz, generated by 10 F-region CW HF ionospheric heating in the absence of electrojet currents, were detected 11 by the DEMETER satellite overflying the HAARP transmitter during HAARP/BRIOCHE 12 campaigns. The whistler waves are in a frequency range corresponding to the F-region 13 Lower-Hybrid (LH) frequency and its harmonic g...

We report the realization of low-loss optical waveguiding at telecommunication wavelength by exploiting the hybridization of photonic modes guided by coupled all-dielectric nanowires and plasmon waves at planar metal-dielectric interfaces. The characteristics of the hybrid plasmon polaritons, which are yielded by the coupling between two types of guided modes, can be readily tuned through engin...

Effects of a uniform magnetic field, the plasma inhomogeneity, and dust charge fluctuations on low-frequency dust-lower-hybrid drift waves have been investigated. Charging currents of electrons and ions to a spherical dust grain in a nonuniform magnetized dusty plasma have been calculated to study the charge fluctuation induced damping or growth of low-frequency drift waves. It is found that fo...

The Equator-S magnetometer is very sensitive and has a sampling rate of normally 128 Hz. The high sampling rate allows for the ®rst time ̄uxgate magnetometer measurements of ELF waves between the ion cyclotron and the lower hybrid frequencies in the equatorial dayside magnetosheath. The so-called lion roars, typically seen by the Equator-S magnetometer at the bottom of the magnetic troughs of m...