scholarly journals Refraction of electromagnetic waves in pseudo-passive media

2021 ◽  
Vol 2140 (1) ◽  
pp. 012024
Author(s):  
V V Fisanov
Keyword(s):  
Electromagnetic Waves ◽  
Total Reflection ◽  
Monochromatic Wave ◽  
Reflection And Transmission ◽  
Material Parameters ◽  
Flat Interface ◽  
Reflection And Refraction ◽  
Transparent Media ◽  
Wave Phenomena ◽  
Fresnel Coefficients

Abstract The problem of reflection and refraction of a plane monochromatic wave is considered in the most general formulation for a flat interface of two isotropic pseudo-passive media using the vector covariant approach of F.I. Fedorov. The generalized Fresnel coefficients for the perpendicular and parallel polarizations turn out to be complex values, except for cases when the phase difference of the permeabilities of the two media is zero or 180 degrees. The critical Brewster angles also turn out to be complex quantities. The phenomenon of total reflection, in contrast to passive transparent media, is not realized in pseudo-passive media. The energy coefficients of reflection and transmission are calculated and analyzed. Restrictions imposed on the values of the material parameters of the problem are indicated, which should be taken into account when studying refractive wave phenomena involving pseudo-passive metamaterials.

Scattering of a Plane Elastic Wave From Objects Near an Interface

1972 ◽  
Vol 39 (4) ◽  
pp. 1019-1026 ◽  
Author(s):  
Stephen B. Bennett
Keyword(s):  
Elastic Wave ◽  
Electromagnetic Waves ◽  
Three Dimensions ◽  
Circular Cylinders ◽  
Scattering Problems ◽  
Reflection And Refraction ◽  
Time Harmonic ◽  
Incident Plane ◽  
Boundary Curves ◽  
Consistent Formulation

The displacement field generated by the reflection and refraction of plane (time harmonic) elastic waves by finite obstacles of arbitrary shape, in the neighborhood of a plane interface between two elastic media, is investigated. The technique employed allows a consistent formulation of the problem for both two and three dimensions, and is not limited either to boundary shapes which are level surfaces in appropriate coordinate systems, i.e., circular cylinders, spheres, etc., or to closed boundary curves or surfaces. The approach is due to Twersky, and has been applied to many problems of the scattering of electromagnetic waves. The method consists of expressing the net field due to all multiple scattering in terms of the field reflected from each boundary in isolation when subjected to an incident plane elastic wave. Thus the technique makes use of more elemental scattering problems whose solutions are extant. By way of illustration, a numerical solution to the scattering of a plane elastic wave by a rigid circular cylindrical obstacle adjacent to a plane free surface is considered.

Reflection and Refraction of Electromagnetic Waves

2020 ◽  
pp. 591-618
Author(s):  
Ahmad Shahid Khan ◽  
Saurabh Kumar Mukerji
Keyword(s):  
Electromagnetic Waves ◽  
Reflection And Refraction

Analysis for Scattering of Non-homogeneous Medium by Time Domain Volume Shooting and Bouncing Rays

2021 ◽  
Vol 36 (3) ◽  
pp. 245-251
Author(s):  
Jun Li ◽  
Huaguang Bao ◽  
Dazhi Ding
Keyword(s):  
Time Domain ◽  
Electromagnetic Scattering ◽  
Electromagnetic Waves ◽  
High Efficiency ◽  
Homogeneous Medium ◽  
Reflection And Transmission ◽  
Transmission Coefficients ◽  
Transient Electromagnetic ◽  
Frequency Domain Methods ◽  
Scattered Fields

In order to evaluate scattering from hypersonic vehicles covered with the plasma efficiently, time domain volume shooting and bouncing rays (TDVSBR) is first introduced in this paper. The new method is applied to solve the transient electromagnetic scattering from complex targets, which combines with non-homogeneous dielectric and perfect electric conducting (PEC) bodies. To simplify the problem, objects are discretized into tetrahedrons with different electromagnetic parameters. Then the reflection and transmission coefficients can be obtained by using theory of electromagnetic waves propagation in lossy medium. After that, we simulate the reflection and transmission of rays in different media. At last, the scattered fields or radiation are solved by the last exiting ray from the target. Compared with frequency-domain methods, time-domain methods can obtain the wideband RCS efficiently. Several numerical results are given to demonstrate the high efficiency and accuracy of this proposed scheme.

scholarly journals XIII. On the reflection and refraction of light

1894 ◽  
Vol 185 ◽  
pp. 823-885 ◽  
Keyword(s):  
Thin Layer ◽  
Reflection And Refraction ◽  
Elliptic Polarization ◽  
Transparent Media

The object of the following paper is to examine how far the hypothesis of a thin layer of transition between two transparent media will explain in detail the phenomena connected with the elliptic polarization produced by reflection at the boundary of two such media. This problem has been approached by the following writers :—L. Lorenz, ‘Poggendorff Annalen,’ 114, p. 460; Van Ryn Van Alkemaade, ‘Wiedemann Annalen,’ 20, p. 23; and P. Drude, 'Wiedemann Annalen, '34 and 36.

Sign in / Sign up

Export Citation Format

Share Document