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Main research areas
Research activity of the laboratory lies at the intersection of physical and quantum electronics, condensed matter physics and electromagnetism and resulted in the crystallisation and fast development of a new research discipline - nanoelectromagnetics, which integrates approaches and methods of classical electrodynamics and present-day quantum physics of condensed matter aiming with modelling of electronic and electromagnetic properties of nanostructures. Research has been started in 1996 and cavers the following key areas:
The research carried out during expired twenty years forms nanoelectromagnetics as well-recognised research direction providing pioneering results in prediction of physical effects in nanostructures and their electromagnetic response properties. The approach being developed to the description of physical processes in nanostructures allowed prediction and explanation of quite a number of new physical effects in carbon nanostructures and semiconductor quantum dots, and in macroscopic ensembles of such objects, and propose concepts of nanodevices utilizing these effects. Started as a fundamental research, presently the work encompasses a wide spectrum of applied problems, including the design of wideband electromagnetic shielding coatings for giga- and terahertz ranges on the base of different forms of nanocarbon (carbon nano-tubes, onon-like carbon, graphene platelets, pyrolitic carbon, etc.). Basic concepts of electrodynamics of carbon nanotubes have been developed [G.Y. Slepyan et al., Phys. Rev. B 17136, 1999], and the effect of strong slowing down of surface wave in carbon nanotubes, as much as 50-100 times, has been predicted. The study of antenna prop-erties of isolated finite-length carbon nanotubes allowed qualitative interpretation ex-perimentally observed peculiarities of the electromagnetic response of CNT-based composite materials in terahertz and far-infrared frequency ranges and give for the first time experimental evidence of antenna nature of the terahertz peak in the conductivity of CNT thin films and CNT-based composites [M.V. Shuba et al., Phys. Rev. B 165435, 2012]. Realizability of the Cherenkov mechanism of amplification and gen-eration of electromagnetic waves in the THz range by nanotubes' p-electrons has been theoretically demonstrated and a concept of CNT as a monomolecular travelling wave tube has been proposed [K.G. Batrakov et al., Phys. Rev. B 125408, 2009].
Experimental study of microwave radiation interaction with ultra-thin carbon films and graphene/PMMA sandwiches were started in 2013. The results obtained demonstrate high potential nanothin films made of pyrolitic carbon and graphene mono- and multilayer structures for microwave applications: it has been found that carbon or graphene layer of the thickness from several to several tens nanometers absorbs about 50% of the electromagnetic radiation in the giga- and terahertz frequency ranges (having been many orders of magnitude thinner than the skin depth.) [K. G. Batrakov Sci. Rep. 7191 2014].
Recently, new and very promising electromagnetic materials - porous carbon micro- and nanostructures (foams, meso- and aerogeles, hollow spheres) - have attracted our attention [D. Bychanok Appl. Phys. Lett. 013701, 2016]. Diversity of porous carbons (random and ordered structures, 3D-periodic lattices, etc.) provides possibilities for the design of materials and metamatyerials with unique thermal, electric and electromagnetic properties.
The Nanoelectromagnetics Laboratory is equipped with:
Activity of the laboratory in the area of fundamental and applied nanoelectromagnetics is wildly recognized due to high-level scientific results and wide international cooperation. We participated and participates presently in a number of projects supported by EU FP6, FP7 "Horizon-2020" as well as NATO SfP and ISTC. In particular, S.A. Maksimenko is a first Belarusian scientist coordinating EU FP7 project, "Institutional development of the applied nanoelectromagnetics: Belarus in ERA widening (FP7-266529 BY-NanoERA). For achievements in nanoelectromagnetics S.A. Maksimenko has been elected as SPIE Fellow. The laboratory team is the only participant outside EU in the EU megagrant GRAPHENE FLAGSHIP "Graphene-Based Revolutions in ICT And Beyond, Multilayered sandwich graphene device", projects FP7- 604391 and Horizon 2020 696656 (Dr. P. Kuzhir is the executing leader). In addition, the EU projects FAEMCAR, CANTOR, NAmiceMC, ÅÑ COEXAN are currently carried out in the laboratory. Stable cooperative links have been established with Rysan State Radiotechnical University, Institute of Inorganic Chemistry SB RAN and Institute of Catalysis SB RAN, Tomsk State University, etc. A joint research and education laboratory on carbon nanomaterials has recently been established with the Harbin University of Science and Technology. Four co-workers, K. Batrakov, P. Kuzhir, S. Maksimenko and G. Slepyan have been awarded by the Acad. A. N. Sevchenko prise (2011).
The nanoelectromagnetics team organized a set of thematically closed events, such as International Conference
"Fundamental and Applied NanoElectroMagnetics"(FANEM 2012) and -->