@article{SyubaevMitsaiPorfirevetal.2020, author = {Syubaev, S. and Mitsai, E. and Porfirev, A. and Khonina, S. and Kudryashov, S. and Katkus, T. and Juodkazis, S. and Gurevich, E. L. and Kuchmizhak, A.}, title = {Silicon microprotrusions with tailored chirality enabled by direct femtosecond laser ablation}, series = {Optics Letters}, volume = {45}, journal = {Optics Letters}, number = {11}, doi = {10.1364/OL.393979}, pages = {3050 -- 3053}, year = {2020}, abstract = {Here, we report on formation of nanoprotrusions on the surface of a bulk crystalline silicon wafer under femtosecond-laser ablation with a donut-shaped laser beam. By breaking circular symmetry of the irradiating donut-shaped fs-pulse beam, a switch in geometry of the formed surface nanoprotrusions from regular to chiral was demonstrated. The chirality of the obtained Si nanostructures was promoted with an asymmetry degree of the laser beam. An uneven helical flow of laser-melted Si caused by asymmetry of the initial intensity and temperature pattern on the laser-irradiated Si surface explains this phenomenon. Chirality of the formed protrusions was confirmed by visualizing cross-sectional cuts produced by focused ion beam milling as well as Raman activity of these structures probed by circularly polarized light with opposite handedness. Our results open a pathway towards easy-to-implement inexpensive …}, language = {en} } @article{AstrovKozlovLodyginetal.2009, author = {Astrov, Yu. A. and Kozlov, V. A. and Lodygin, A. N. and Portsel, L. M. and Shuman, V. B. and Gurevich, E. L. and Hergenr{\"o}der, R.}, title = {Redistribution of deep selenium and sulfur impurities in silicon upon surface doping with phosphorus}, series = {Semiconductors}, volume = {43}, journal = {Semiconductors}, issn = {1063-7826}, doi = {10.1134/S1063782609060049}, pages = {710 -- 715}, year = {2009}, abstract = {The study is concerned with the effect of short-term high-temperature heating on Si:Se and Si:S samples, whose surface layers are doped with phosphorus to high concentrations. It is found that the resistivity of the wafers substantially increases deep in the bulk within up to similar to 10 mu m. The experimental data suggest that this effect is due to enhanced diffusion of chalcogen in the presence of the phosphorus-doped surface region. The mechanism of the effect is the injection of nonequilibrium interstitial silicon atoms from the layer heavily doped with phosphorus to the bulk of the sample. This results in a shift of the equilibrium between the concentrations of substitutional and interstitial impurity atoms towards higher concentrations of interstitials and, as a consequence, towards the increase in the relative content of the fast-diffusing interstitial component of the impurity.}, language = {en} } @article{MonticelliGurevichHergenroeder2009, author = {Monticelli, D. and Gurevich, E. L. and Hergenr{\"o}der, R.}, title = {Design and performances of a cyclonic flux cell for laser ablation}, series = {J. An. At. Spectr.}, volume = {24}, journal = {J. An. At. Spectr.}, issn = {0267-9477}, doi = {10.1039/b807991a}, pages = {328 -- 335}, year = {2009}, abstract = {A new simple design of a high-efficiency low-transport-time cell for laser ablation is presented. The main feature of the design is that the particles are transported by a laminar spiral gas flow into the outlet without any contact with the cell walls. The efficiency of the particle transport and the dependence of the ICP-MS peak shape on experimental conditions were measured. The peak duration on the 10\% level was found to be as short as 30 ms and the transport efficiency reached 100\% when analysing a standard brass sample. As an example of application to real samples with fine inhomogeneities, the profiles of C-13, Ca-44 and Pb-208 were measured by LA-ICP-MS across a tree core. As a result, the very quick particle transport time of the cell enabled the fine, seasonal variation in wood composition to be resolved.}, language = {en} } @article{ThomasLinZhigileietal.2009, author = {Thomas, D. A. and Lin, Z. and Zhigilei, L. V. and Gurevich, E. L. and Kittel, S. and Hergenr{\"o}der, R.}, title = {Atomistic modeling of femtosecond laser-induced melting and atomic mixing in Au film - Cu substrate system}, series = {Appl. Surf. Sci.}, volume = {255}, journal = {Appl. Surf. Sci.}, issn = {0169-4332}, doi = {10.1016/j.apsusc.2009.04.079}, pages = {9605 -- 9612}, year = {2009}, abstract = {The mechanisms of femtosecond laser-induced transient melting and atomic mixing in a target composed of a 30 nm Au film deposited on a bulk Cu substrate are investigated in a series of atomistic simulations. The relative strength and the electron temperature dependence of the electron-phonon coupling of the metals composing the layered target are identified as major factors affecting the initial energy redistribution and the location of the region(s) undergoing transient melting and resolidification. The higher strength of the electron-phonon coupling in Cu, as compared to Au, results in a preferential sub-surface heating and melting of the Cu substrate, while the overlaying Au film largely retains its original crystalline structure. The large difference in the atomic mobility in the transiently melted and crystalline regions of the target makes it possible to connect the final distributions of the components in the resolidified targets to the history of the laser-induced melting process, thus allowing for experimental verification of the computational predictions. (C) 2009 Elsevier B. V. All rights reserved.}, language = {en} } @article{GurevichAmiranashviliPurwins2005, author = {Gurevich, E. L. and Amiranashvili, S. and Purwins, H.-G.}, title = {Current spots in an obstructed planar glow discharge}, series = {J. Phys. D: Appl. Phys.}, volume = {38}, journal = {J. Phys. D: Appl. Phys.}, issn = {0022-3727}, pages = {1029 -- 1033}, year = {2005}, language = {en} } @article{GurevichMoskalenkoZaninetal.2003, author = {Gurevich, E. L. and Moskalenko, A. S. and Zanin, A. L. and Astrov, Yu. A. and Purwins, H.-G.}, title = {Rotating waves in a planar dc-driven gas-discharge system with semi-insulating GaAs cathode}, series = {Phys. Lett. A}, volume = {307}, journal = {Phys. Lett. A}, pages = {299 -- 303}, year = {2003}, language = {en} } @article{ZybinKuritsynGurevichetal.2010, author = {Zybin, A. and Kuritsyn, Yu. A. and Gurevich, E. L. and Temchura, V. V. and {\"U}eberla, K. and Niemax, K.}, title = {Real-time Detection of Single Immobilized Nanoparticles by Surface Plasmon Resonance Imaging}, series = {Plasmonics}, volume = {5}, journal = {Plasmonics}, issn = {1557-1955}, doi = {10.1007/s11468-009-9111-5}, pages = {31 -- 35}, year = {2010}, abstract = {In this manuscript, a new approach in surface plasmon resonance microscopy is presented. The method provides optical real-time detection of single nanoparticles on surfaces. The potential of the method is demonstrated recording spherical dielectric particles as small as 40 nm in diameter and single HIV virus-like particles having diameters of similar to 100 nm both immobilized on functionalized surfaces. The surface plasmon resonance signal in the binding spots was found to be almost linearly proportional to the size of the particles and, therefore, surpasses the intensity of Mie scattering on spherical particle (dependence similar to r(-6)) by orders of magnitude for small objects. The physical reason leading to this strong effect is discussed.}, language = {en} } @article{GurevichKittelHergenroeder2012, author = {Gurevich, E. L. and Kittel, S. and Hergenr{\"o}der, R.}, title = {Experimental and numerical study of surface alloying by femtosecond laser radiation}, series = {Appl. Surf. Sci.}, volume = {258}, journal = {Appl. Surf. Sci.}, issn = {0169-4332}, pages = {2576 -- 2579}, year = {2012}, language = {en} } @article{XiaoGurevichOstendorf2012, author = {Xiao, S. and Gurevich, E. L. and Ostendorf, A.}, title = {Incubation effect and its influence on laser patterning of ITO thin film}, series = {Appl. Phys. A}, volume = {107}, journal = {Appl. Phys. A}, pages = {333 -- 338}, year = {2012}, language = {en} } @article{Gurevich2011, author = {Gurevich, E. L.}, title = {Self-organized nanopatterns in thin layers of superheated liquid metals}, series = {Phys. Rev. E}, volume = {83}, journal = {Phys. Rev. E}, issn = {1063-651X}, pages = {031604}, year = {2011}, language = {en} }