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About

Ph.D. graduate in theoretical physics from the University of Tehran, Iran (2011). Being lecturer of various courses for undergraduate and Master degree students. A Faculty Member of the Physics Department of the K.N. Toosi University of Technology, Tehran (Iran), from Sep. 2012 to Feb. 2014. Visitor professor at CFC, Department of Physics, University of Coimbra (Portugal), from Feb. 2014 to Dec. 2014. Collaborator researcher at the Department of Physics and Astronomy, University of Porto (Portugal), from Jan. 2015 to Apr. 2017. A member of CFP, University of Porto, from May 2016 to Apr. 2017. Researcher at IT, University of Coimbra (Pólo II), from Apr. 2017 to Dec. 2018. Since May 2019, doing research in the study of the dynamics of electrical power system at INESC TEC in Porto, Portugal.
Research experiences/interests: nuclear structure and nuclear many-body physics, semiconductor lasers and detectors, atmospheric optics (specifically optical turbulence), compact stars, non-commutative quantum mechanics, heat transfer in micro- & nano-scale (meta)materials, and, recently, dynamics of eletrical power system stability (https://orcid.org/0000-0002-1324-0260)


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Publications

2019

Envelope Dyadic Green's Function for Uniaxial Metamaterials

Authors
Maslovski, SI; Mariji, H;

Publication
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.