Institute for Theoretical and Applied Electrodynamics

Moscow, Russia

Institute for Theoretical and Applied Electrodynamics

Moscow, Russia

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Apelfeld A.V.,Moscow Aviation Institute | Krit B.L.,Moscow Aviation Institute | Ludin V.B.,Russian State Agrarian Correspondence University | Morozova N.V.,Moscow Medical Academy | And 3 more authors.
Materials Science Forum | Year: 2016

An increase in the durability and reliability of the technological equipment and tools with regard to economic and environmental factors is directly related to the tribological properties of coupling details (wear resistance, coefficient of friction, seizure, etc.). The problem can be solved only through the deep and science-based approaches, one of which should be considered is surface engineering. The article discusses the use of the hybrid technology of the surface synthesis of nanostructured composite polimer-ceramics coatings to manufacture face seals of high-precision durable, low-torque and fast-running mechanisms. © 2016 Trans Tech Publications, Switzerland.


Lagarkov A.N.,Institute for Theoretical and Applied Electrodynamics | Ryzhikov I.A.,Institute for Theoretical and Applied Electrodynamics | Vaskin A.V.,Institute for Theoretical and Applied Electrodynamics | Afanasiev K.N.,Institute for Theoretical and Applied Electrodynamics | And 6 more authors.
Moscow University Chemistry Bulletin | Year: 2015

The possibility of amplification of local electric fields on the surface of thin dielectric films of complex structure is considered. Amplification of the optical field enables an increase in the intensity of the Raman scattering signal and provides broad opportunities for the development of novel biochemical sensors. © 2015, Allerton Press, Inc.


Kalinov A.V.,University of Cologne | Gorbenko O.Yu.,Moscow State University | Taldenkov A.N.,RAS Research Center Kurchatov Institute | Rohrkamp J.,University of Cologne | And 8 more authors.
Solid State Phenomena | Year: 2011

The magnetic/s in-state hase diagram of the (Pr1-yEu y)0.7Ca0.3CoO3 series was obtained on the basis of measurements of the s ecific heat, thermal ex ansion, magnetization and resistivity. The hase diagram reveals three different states de ending on the static distortions (Eu content), the oxygen-isoto e mass, and the tem erature. The sam les with the lower Eu concentrations are ferromagnetically ordered u to moderate tem eratures (about 50 K), most robably, due to the low-s in Co4+ - intermediate-s in Co3+ interaction of the double-exchange ty e. As the Eu do ing increases, the Co 3+ LS (S = 0) state becomes stabilized and the magnetic ordering of the Co4+ ions is su ressed u to tem eratures well below 5 K, resulting in a low-tem erature anomaly in Cp. At higher tem eratures, we observe a first-order s in-state transition from the LS to the IS state of Co3+, which is accom anied by a decrease in the electrical resistivity, an increase in the magnetization, and a strong lattice expansion.


Ivanov A.V.,Institute for Theoretical and Applied Electrodynamics | Vaskin A.V.,Institute for Theoretical and Applied Electrodynamics | Lagarkov A.N.,Institute for Theoretical and Applied Electrodynamics | Sarychev A.K.,Institute for Theoretical and Applied Electrodynamics
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2014

The surface plasmon (SP) excitations in the periodical array of the nanorods have attracted a lot of attention in the recent years due to the numerous potential applications in nanoplasmonics including transmitting and processing optical signals on a scale much smaller than the wavelength. In our work the plasmonic and dielectric systems consisting of twodimensional periodic arrays of nanorods are considered. We use computer simulation as well as exact analytical solution to find reflectance and transmittance the plane array of the nanorods, which have various diameters and inter-particle spacing. As the metal nanorods approach each other, series of surface plasmon resonances are excited. The resonances are strongly localized between nanorods due to its collective nature. It is shown that the local electric field is much enhanced in the interparticle gap and it concentrates at a scale much smaller than the diameter of the rod. The reflectance and transmittance have sharp minima and maxima corresponding to the excitation of various SP resonances. The computer simulations are in an agreement with our analytical theory. In the case of the dielectric nanorods the phenomenon of the whispering gallery modes effect is considered. The resonance frequencies and field enhancement can be tuned by variation of the shape and arrangement of the nanorods. The system of nanorods that almost touched each other by their generatrices can be used to develop plasmon and dielectric substrates, which are the basic elements of high sensitive SERS bio and chemical sensors. © 2014 SPIE.


Ivanov A.V.,Moscow State University | Shalygin A.N.,Moscow State University | Vorobev P.E.,Landau Institute for Theoretical Physics | Vergeles S.S.,Landau Institute for Theoretical Physics | Sarychev A.K.,Institute for Theoretical and Applied Electrodynamics
Proceedings of the International Conference Days on Diffraction, DD 2012 | Year: 2012

The optical response of array of metal nanorods is studied in the case when the cylinders are almost touching by their generatrices. As the cylinders approach each other, the series of the surface plasmon resonances are excited. The resonances result in a huge enhancement of the local electric field in the gap between cylinders at the resonance frequencies. The system of the metal nanorods can be used to create SERS plasmonic sensors. © 2012 IEEE.

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