Modelling the Surface Plasmon Spectra of an ITONanoribbon Grating Adjacent to a LiquidCrystal Layer.

The reflection and transmission coefficients of an indium tin oxide (ITO) nanoribbongrating placed between a nematic liquid crystal (LC) layer and an isotropic dielectric medium arecalculated in the infrared region. Reflection and transmission spectra in the range of 1-5 μm relatedto the surface plasmon excitation in the ITO nanoribbons are obtained. Dependence of the peakspectral position on the grating spacing, the ribbon aspect ratio, and the 2D electron concentrationin the nanoribbons is studied.

Liquid crystal control of the plasmon resonances at terahertz frequencies in graphene microribbon gratings.

We theoretically study the influence of the liquid crystal (LC) orientational state on the absorption, reflection, and transmission spectra of a graphene microribbon grating placed between a nematic LC and an isotropic dielectric substrate. We calculate the absorption, reflection, and transmission coefficients at normal incidence of a far-infrared transverse magnetic wave (THz) and show that control of the orientational state of the LC layer enables the manipulation of the magnitude of the absorption and reflection maxima. The influence the LC orientational state on the plasmonic resonance increases with increasing the isotropic substrate dielectric constant and the graphene microribbon width to grating spacing ratio.

Electrical Properties of Composite Materials with Electric Field-Assisted Alignment of Nanocarbon Fillers.

The article reports about electric field-induced alignment of the carbon nanoparticles embedded in epoxy matrix. Optical microscopy was performed to consider the effect of the electric field magnitude and configuration, filler morphology, and aspect ratio on alignment process. Characteristic time of aligned network formation was compared with modeling predictions.

[The sorption therapy in complex treatment of abdominal sepsis].

The results of diagnosis and treatment of 31 patients, suffering abdominal sepsis of various origin, are analyzed. There was elaborated algorithm of postoperative treatment ot the patients. Depending on peculiarities of postoperative tactic of treatment, all the patients were divided into two groups.