Metamaterials (MMs) with artificial structures have extraordinary physical properties that cannot be found in traditional materials. MMs electromagnetic wave absorption (MMAs) can prepared through the structural design and arrangement of unit special properties. These at subwavelength scale are fundamental for MMAs to surpass performance limits bulk materials, so matching manufacturing processe...

Analytic expressions for the nonlinear absorption coefficient (nonlinear absorption coefficient = NAC) of a strong electromagnetic wave (laser radiation) caused by confined electrons for the case of electron — optical phonon scattering in doping superlattices (doping superlattices = DSLs) are calculated by using the quantum kinetic equation for electrons. The problem is also considered for both...

The enhancement of the resonant instability of right-hand polarized electromagnetic ion cyclotron waves by alpha particles for physical parameters corresponding to coronal mass ejections is studied. We focus on the e ects of alpha thermal anisotropy and relative He=H abundance on growth and absorption rates. The rst parameter governs directly wave emission, while the second modi es also the wav...

We developed composite electromagnetic wave absorbers made of fine aluminum particles dispersed in a polystyrene medium and evaluated their properties in order to realize metal-backed single-layer electromagnetic wave absorbers with a good absorption property in the GHz region. Both the magnetization and the magnetic loss caused by the eddy current flowing on the surface of the aluminum particl...

We describe light scattering from a graphene sheet having a modulated optical conductivity. We show that such modulation enables the excitation of surface plasmon polaritons by an electromagnetic wave impinging at normal incidence. The resulting surface plasmon polaritons are responsible for a substantial increase of electromagnetic radiation absorption by the graphene sheet. The origin of the ...

In this paper a novel approach for analyzing penetration of electromagnetic radiations in human tissue at different frequency is presented. Moreover, we concentrated our work on analyzing the other related factors describing system performance like return loss& Voltage Standing Wave Ratio (VSWR). consider We use different communication frequencies to simulate antenna for analyzing variation in ...

Linear and nonlinear interactions of an electromagnetic wave with molecules of an isotropic medium induce in them multipole moments which contribute to electric polarization of the system [1]. Out of absorption bands optical rectification (OR) via the second-order susceptibility is forbidden but the fourth-order dipolar electric nonlinearity may cause OR in chiral liquids [2]. However, in absor...