2019
Autores
Maslovski, SI; Mariji, H;
Publicação
SCIENTIFIC REPORTS
Abstract
We introduce the concept of the envelope dyadic Green's function (EDGF) and present a formalism to study the propagation of electromagnetic fields with slowly varying amplitude (EMFSVA) in dispersive anisotropic media with two dyadic constitutive parameters: the dielectric permittivity and the magnetic permeability. We find the matrix elements of the EDGFs by applying the formalism for uniaxial anisotropic metamaterials. We present the relations for the velocity of the EMFSVA envelopes which agree with the known definition of the group velocity in dispersive media. We consider examples of propagation of the EMFSVA passing through active and passive media with the Lorentz and the Drude type dispersions, demonstrating beam focusing in hyperbolic media and superluminal propagation in media with inverted population. The results of this paper are applicable to the propagation of modulated electromagnetic fields and slowly varying amplitude fluctuations of such fields through frequency dispersive and dissipative (or active) anisotropic metamaterials. The developed approach can be also used for the analysis of metamaterial-based waveguides, filters, and delay lines.
2011
Autores
Modarres, M; Mariji, H; Rasekhinejad, N;
Publicação
Nuclear Physics A
Abstract
2012
Autores
Modarres, M; Mariji, H;
Publicação
Physical Review C
Abstract
2002
Autores
Modarres, M; Moshfegh, HR; Mariji, H;
Publicação
Canadian Journal of Physics
Abstract
2011
Autores
MODARRES, M; RASEKHINEJAD, N; MARIJI, H;
Publicação
International Journal of Modern Physics E
Abstract
2014
Autores
Mariji, H;
Publicação
The European Physical Journal A
Abstract
The access to the final selection minute is only available to applicants.
Please check the confirmation e-mail of your application to obtain the access code.