The advent of negative index materials has spawned extensive research into metamaterials over the past decade. Metamaterials are attractive not only for their exotic electromagnetic properties, but also their promise for applications. A particular branch-the metamaterial perfect absorber (MPA)-has garnered interest due to the fact that it can achieve unity absorptivity of electromagnetic waves....

To enhance the absorption performance of silicon carbide fiber (SiCf), hybrid fibers with a double shell structure (Ti3SiC2 and carbon nanotubes (CNTs)) on SiCf ([email protected]3SiC2@SiCf) were successfully synthesized by combination molten salt method floating catalytic chemical vapor deposition. A series 10% weight fraction reinforced paraffin samples was prepared to study coating influence...

Multiband Absorber In article number 2000734 by Guangsheng Deng, Jun Yang, and co-workers, a multiband absorber based on three-dimensional (3D) frequency selective structures (FSSs) is presented. Four standing closed loops intersecting with lateral split loop in each cell, as shown the bottom of picture, generate multi-band perfect electromagnetic wave absorption. The proposed structure, which ...

With the demand for larger bandwidths and faster data speeds, wireless communication systems are expanding into the millimeter wave and terahertz region of the electromagnetic spectrum. Successful transition to higher frequencies, particularly for systems located in urban or indoor environments, will require a thorough understanding of the reflection, transmission, absorption, and scattering of...

Absolute negative refraction regions for both polarizations of electromagnetic wave in two-dimensional photonic crystal have been found through both the analysis and the exact numerical simulation. Especially, absolute all-angle negative refraction for both polarizations has also been demonstrated. Thus, the focusing and image of unpolarized light can be realized by a microsuperlens consisting ...

The mutagenic effect of radiofrequency electromagnetic field (RF-EMF) is evaluated by the micronucleus (MN) test in secondary roots of Vicia faba seedlings. Root exposures were carried out with 915 MHz continuous wave (CW) radiation for 72h, at power densities of 25, 38, 50 W/m 2 . The specific absorption rate (SAR) corresponding to the experimental exposures was measured with a calorimetric me...