Transverse electric surface waves in a plasma medium bounded by magnetic materials

Ali, Rashid; Zamir, Burhan; Shah, H. A.

doi:10.1016/j.rinp.2017.11.037

Cited by 8 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Surface waves that correspond to symmetric and anti-symmetric modes were observed and the spectra of these modes were shown to be different in the long wavelength limit. Recently, transverse electric waves for a plasma slab sandwiched between two ferrite films have been investigated [15]. The dispersion relation of the surface waves were obtained theoretically, and plots for the effective wave index versus propagation frequency were obtained by numerical calculations in the frequency range where Voigt permeability function has negative values.…”

Section: Introductionmentioning

confidence: 99%

On the coupling of forward and backward slow waves supported by the waveguide configuration of a dielectric sandwiched between two plasma slabs

Yasin

Al‐Khateeb

Rawwagah

et al. 2020

AEM

View full text Add to dashboard Cite

We derived a general equation governing the spectra of electrostatic surface plasmons supported by a waveguide structure of two identical plasma slabs separated by a dielectric medium. The plasma slabs are parallel, homogeneous, and have finite thicknesses. The geometry under consideration supports two surface plasmon modes, which we investigated numerically for Polyethylene $\varepsilon_d=2.25$ and vacuum $\varepsilon_d=1$ as central regions. With vacuum as a central region, the two surface plasmon modes become coupled and merge into the well known single mode of quasi-static frequency $\omega=0.707\omega_{\rm p}$. The surface plasmon modes in the presence of a Polyethylene are decoupled and remain nondegenerate over the whole range of $kd$. Therefore, the two plasmon modes propagate independent of each other with distinct quasi-static resonance frequencies, namely, a backward wave with $\omega=0.707\omega_{\rm p}$ corresponding to a single plasma-vacuum interface and a forward wave with $\omega=\frac{\omega_{\rm p}}{\sqrt{3.25}}=0.55\omega_{\rm p}$ corresponding to a single plasma-dielectric interface. Increasing the central region width is found to introduce a delay in reaching the quasi-static resonance frequencies. The effect of collision is to down shift the mode frequencies for long wavelengths and also to down shift the quasi-static frequencies.

show abstract

Section: Introductionmentioning

confidence: 99%