TY - JOUR A1 - Syubaev, S. A1 - Mitsai, E. A1 - Porfirev, A. A1 - Khonina, S. A1 - Kudryashov, S. A1 - Katkus, T. A1 - Juodkazis, S. A1 - Gurevich, E. L. A1 - Kuchmizhak, A. T1 - Silicon microprotrusions with tailored chirality enabled by direct femtosecond laser ablation JF - Optics Letters N2 - 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 … Y1 - 2020 U6 - http://dx.doi.org/10.1364/OL.393979 VL - 45 IS - 11 SP - 3050 EP - 3053 ER - TY - CHAP A1 - Weichert, F. A1 - Gaspar, M. A1 - Zybin, A. A1 - Gurevich, E. L. A1 - Görtz, A. A1 - Timm, C. A1 - Müller, H. A1 - Marwedel, P. T1 - Plasmonen-unterstützte Mikroskopie zur Detektion von Viren T2 - Bildverarbeitung für die Medizin 2010 Y1 - 2010 SN - 978-3-642-11967-5 PB - Springer CY - Berlin ER - TY - JOUR A1 - Markovskii, S. I. A1 - Kozlovskii, A. V. A1 - Fedichkin, I. L. A1 - Gurevich, E. L. A1 - Begak, O. Y. A1 - Borodin, A. V. T1 - Process control in metallurgy using an EMG-20 mass-spectrometric gas analyzer JF - Ind. Lab. N2 - The potential use of an EMG-20 mass-spectrometric gas analyzer for process control and safe operation and environmental monitoring in metallurgy (oxygen converter process) is considered. The EMG-20 parameters are adequate for rapid, automatic on-line analysis of metallurgical waste gases. A multichannel system of sampling. sample preparation, and transportation of sampled gases for analysis is proposed. Y1 - 2000 SN - 0019-8447 VL - 66 SP - 354 EP - 359 ER - TY - JOUR A1 - Köhler, J. A1 - Friedrich, J. A1 - Ostendorf, A. A1 - Gurevich, E. L. T1 - Characterization of azimuthal and radial velocity fields induced by rotors in flows with a low Reynolds number JF - Phys. Rev. E. Y1 - 2016 VL - 93 SP - 023108 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Zanin, A. L. A1 - Moskalenko, A. S. A1 - Purwins, H.-G. T1 - Concentric-ring patterns in a dielectric barrier discharge system JF - Phys. Rev. Lett. Y1 - 2003 SN - 0031-9007 VL - 91 SP - 154501 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Gurevich, S. V. T1 - Laser Induced Periodic Surface Structures induced by surface plasmons coupled via roughness JF - Appl. Surf. Sci. Y1 - 2014 SN - 0169-4332 VL - 302 SP - 118 EP - 123 ER - TY - JOUR A1 - Kanitz, A. A1 - Hoppius, J. S. A1 - Fiebrandt, M. A1 - Awakowicz, P. A1 - Esen, C. A1 - Ostendorf, A. A1 - Gurevich, E. L. T1 - Impact of liquid environment on femtosecond laser ablation JF - Appl. Phys. A Y1 - 2017 VL - 123 SP - 674 ER - TY - JOUR A1 - Köhler, J. A1 - Ghadiri, R. A1 - Ksouri, S. A1 - Guo, Q. A1 - Gurevich, E. L. A1 - Ostendorf, A. T1 - Gene­ration of microfluidic flow using an optically assembled and magnetically driven microrotor JF - J. Phys. D: Appl. Phys. Y1 - 2014 SN - 0022-3727 VL - 47 SP - 505501 ER - TY - JOUR A1 - Chakif, M. A1 - Prymak, O. A1 - Slota, M. A1 - Heintze, E. A1 - Gurevich, E. L. A1 - Esen, C. A1 - Bogani, L. A1 - Epple, M. A1 - Ostendorf, A. T1 - Impact of solvent mixture on iron nanoparticles gene­rated by laser ablation Y1 - 2014 U6 - http://dx.doi.org/10.1117/12.2037682 VL - 8955 ER - TY - JOUR A1 - Zybin, A. A1 - Kuritsyn, Yu. A. A1 - Gurevich, E. L. A1 - Temchura, V. V. A1 - Üeberla, K. A1 - Niemax, K. T1 - Real-time Detection of Single Immobilized Nanoparticles by Surface Plasmon Resonance Imaging JF - Plasmonics N2 - 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. Y1 - 2010 U6 - http://dx.doi.org/10.1007/s11468-009-9111-5 SN - 1557-1955 VL - 5 SP - 31 EP - 35 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Moskalenko, A. S. A1 - Zanin, A. L. A1 - Astrov, Yu. A. A1 - Purwins, H.-G. T1 - Rotating waves in a planar dc-driven gas-discharge system with semi-insulating GaAs cathode JF - Phys. Lett. A Y1 - 2003 VL - 307 SP - 299 EP - 303 ER - TY - JOUR A1 - Zanin, A. L. A1 - Gurevich, E. L. A1 - Moskalenko, A. S. A1 - Bodeker, H. U. A1 - Purwins, H.-G. T1 - Rotating hexagonal pattern in a dielectric barrier discharge system JF - Phys. Rev. E Y1 - 2004 U6 - http://dx.doi.org/10.1103/PhysRevE.70.036202 SN - 1063-651X VL - 70 SP - 036202 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Liehr, A. W. A1 - Amiranashvili, S. A1 - Purwins, H.-G. T1 - Role of surface charges in dc gas-discharge systems with high-ohmic electrodes JF - Phys. Rev. E Y1 - 2004 SN - 1063-651X VL - 69 SP - 036211 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Astrov, Y. A. A1 - Purwins, H.-G. T1 - Pattern formation in planar dc-driven semiconductor-gas discharge devices: two mechanisms JF - J. Phys. D: Appl. Phys. Y1 - 2005 SN - 0022-3727 VL - 38 SP - 468 EP - 476 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Amiranashvili, S. A1 - Purwins, H.-G. T1 - Current spots in an obstructed planar glow discharge JF - J. Phys. D: Appl. Phys. Y1 - 2005 SN - 0022-3727 VL - 38 SP - 1029 EP - 1033 ER - TY - JOUR A1 - Raizer, Y. P. A1 - Gurevich, E. L. A1 - Mokrov, M. S. T1 - Self-sustained oscillations in a low-current discharge with a semiconductor serving as a cathode and ballast resistor: II. Theory JF - Tech. Phys. N2 - Current self-sustained oscillations in a Townsend discharge are studied analytically. The proposed method for solving simple equations is applicable even when the Townsend coefficient of electron reproduction g (the main factor governing the oscillations) cannot be determined theoretically. The coefficient g is related to the discharge current-voltage characteristic, which can be obtained experimentally or from numerical simulations. Self-oscillating solutions (limit cycles) are found under various conditions. The mechanisms governing the excitation and stabilization of the solutions obtained are interpreted. It is shown that the waveform of the undamped oscillations may change significantly (the current peaks are smoothed, and the oscillation period decreases) when a weak constant cathode current, which is presumably related to the emission caused by slowly diffusing metastable molecules, is included in the equations. Y1 - 2006 U6 - http://dx.doi.org/10.1134/S1063784206020071 SN - 1063-7842 VL - 51 SP - 185 EP - 197 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Raizer, Y. P. A1 - Purwins, H.-G. T1 - Self-sustained oscillations in a low-current discharge with a semiconductor serving as a cathode and ballast resistor: I. Experiment JF - Tech. Phys. N2 - Self-sustained current oscillations in a Townsend discharge that is excited in a short plane discharge gap and is uniform along the electrode surface are investigated experimentally. A thin semiconductor plane serves as a discharge cathode, a ballast resistor, and an additional capacitor in the dc power supply circuit. The domain of existence and the frequency and waveform, of oscillations are determined over a wide pressure range. Y1 - 2006 U6 - http://dx.doi.org/10.1134/S106378420602006X SN - 1063-7842 VL - 51 SP - 180 EP - 184 ER - TY - JOUR A1 - Khare, K. A1 - Brinkmann, M. A1 - Law, B. M. A1 - Gurevich, E. L. A1 - Herminghaus, S. A1 - Seemann, R. T1 - Dewetting of liquid filaments in wedge-shaped grooves JF - Langmuir N2 - The dewetting of liquid filaments in linear grooves of a triangular cross section is studied experimentally and theoretically. Homogeneous filaments of glassy polystyrene (PS) are prepared in triangular grooves in a nonequilibrium state. At elevated temperatures, the molten PS restores its material contact angle with the substrate. Liquid filaments with a convex liquid-vapor interface decay into isolated droplets with a characteristic spacing depending on the wedge geometry, wettability, and filament width. This instability is driven by the interplay of local filament width and Laplace pressure and constitutes a wide class of ID instabilities that also include the Rayleigh -Plateau instability as a special case. Our results show an accurately exponential buildup of the instability, suggesting that fluctuations have a minor influence in our system. Y1 - 2007 U6 - http://dx.doi.org/10.1021/la701515u SN - 0743-7463 VL - 23 SP - 12138 EP - 12141 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Hergenröder, R. T1 - Femtosecond laser-induced breakdown spectroscopy: Physics, applications, and perspectives JF - Appl. Spectroscopy Y1 - 2007 SN - 0003-7028 VL - 61 SP - 233A EP - 242A ER - TY - JOUR A1 - Gurevich, E. L. A1 - Hergenröder, R. T1 - A simple laser ICP-MS ablation cell with wash-out time less than 100 ms JF - J. An. At. Spectr. N2 - In this paper a novel concept of ablation cell for laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is presented. Suppression of the turbulence in the flush gas flow in the ablation region reduces the wash-out time of the ablation cell considerably. An ablation chamber which enables ICP-MS pulse duration down to several ten milliseconds has been designed. Dependence of the ICP-MS peak amplitude, width, and shape on the gas flow parameters is studied experimentally for aerosol ablated under laminar and turbulent conditions. Experiments demonstrate that the ICP-MS peak becomes sharper and the amplitude of the signal grows as the turbulence in the ablation cell is suppressed. Furthermore, the possibility of the LA-ICP-MS analysis with a sampling rate of more than 10 Hz has been demonstrated. Express in-depth profiling in the new ablation cell is demonstrated on examples of an Al -Zn multilayer structure and an industrial Mg -Zn coating. Y1 - 2007 U6 - http://dx.doi.org/10.1039/b704700b SN - 0267-9477 VL - 22 SP - 1043 EP - 1050 ER - TY - JOUR A1 - Thomas, D. A. A1 - Lin, Z. A1 - Zhigilei, L. V. A1 - Gurevich, E. L. A1 - Kittel, S. A1 - Hergenröder, R. T1 - Atomistic modeling of femtosecond laser-induced melting and atomic mixing in Au film - Cu substrate system JF - Appl. Surf. Sci. N2 - 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. Y1 - 2009 U6 - http://dx.doi.org/10.1016/j.apsusc.2009.04.079 SN - 0169-4332 VL - 255 SP - 9605 EP - 9612 ER - TY - JOUR A1 - Monticelli, D. A1 - Gurevich, E. L. A1 - Hergenröder, R. T1 - Design and performances of a cyclonic flux cell for laser ablation JF - J. An. At. Spectr. N2 - 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. Y1 - 2009 U6 - http://dx.doi.org/10.1039/b807991a SN - 0267-9477 VL - 24 SP - 328 EP - 335 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Hergenröder, R. T1 - The production of free-standing large aspect ratio metal nanofilms by femtosecond laser separation JF - Nanotechnology N2 - We demonstrate a new method for the production of free-standing metal films of thickness down to several tens of nanometres. Films of different metals as well as multilayer structures have been produced by means of femtosecond laser-induced separation of evaporated layers from a plane glass surface. This technology enables the production of large-area films with different properties for optical or nanotechnological applications. We study the properties of the film and demonstrate the possibility of high-pass filtering of electrons with an energy of several keV by means of the free-standing films. The physical mechanisms leading to the film separation under femtosecond laser radiation are discussed. Y1 - 2009 U6 - http://dx.doi.org/10.1088/0957-4484/20/27/275609 SN - 0957-4484 VL - 20 SP - 275609 ER - TY - JOUR A1 - Astrov, Yu. A. A1 - Kozlov, V. A. A1 - Lodygin, A. N. A1 - Portsel, L. M. A1 - Shuman, V. B. A1 - Gurevich, E. L. A1 - Hergenröder, R. T1 - Redistribution of deep selenium and sulfur impurities in silicon upon surface doping with phosphorus JF - Semiconductors N2 - 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. Y1 - 2009 U6 - http://dx.doi.org/10.1134/S1063782609060049 SN - 1063-7826 VL - 43 SP - 710 EP - 715 ER - TY - JOUR A1 - Weichert, F. A1 - Gaspar, M. A1 - Timm, C. A1 - Zybin, A. A1 - Gurevich, E. L. A1 - Engel, M. A1 - Mueller, H. A1 - Marwedel, P. T1 - Signal Analysis and Classification for Surface Plasmon Assisted Microscopy of Nanoobjects JF - Sens. Act. B-Chem. N2 - The need for portable and on site screening methods for viruses is evident in face of virus infections that can spread lastly in a heavily connected world. A robust and efficient method for detecting viruses is a novel technique called Plasmon Assisted Microscopy of Nanoobjects. It is based on the acquisition of images from a sensor surface exploiting the behavior of surface plasmons in the presence of nanoobjects. In this paper an efficient image analysis approach with respect to the requirements of the sensor is presented and an embedded image processing system for this purpose is introduced. The processing pipeline comprises three steps and starts with restorating the images by removing the background and filtering artifacts. The acquired image series is analyzed pixel by pixel in a second pipeline step in order to detect pixels containing nanoobjects. In a last step pixels are aggregated to nanoobject structures. The paper introduces in the context of this virus detection method a configurable embedded system that was used for rapid prototyping of the image analysis algorithms in a flexible way. (C) 2010 Elsevier B.V. All rights reserved. Y1 - 2010 U6 - http://dx.doi.org/10.1016/j.snb.2010.08.005 SN - 0925-4005 VL - 151 SP - 281 EP - 290 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Kittel, S. A1 - Hergenröder, R. A1 - Astrov, Yu A. A1 - Portsel, L. M. A1 - Lodygin, A. N. A1 - Tolmachev, V. A. A1 - Ankudinov, A. V. T1 - Modification of GaAs surface by low-current Townsend discharge JF - J. Phys. D: Appl. Phys. N2 - The influence of stationary spatially homogeneous Townsend discharge on the (1 0 0) surface of semi-insulating GaAs samples is studied. Samples exposed to both electrons and ions in a nitrogen discharge Y1 - 2010 U6 - http://dx.doi.org/10.1088/0022-3727/43/27/275302 SN - 0022-3727 VL - 43 SP - 275302 ER - TY - JOUR A1 - Meyer, C. A1 - Müller, S. A1 - Gurevich, E. L. A1 - Franzke, J. T1 - Dielectric barrier discharges in analytical chemistry JF - Analyst Y1 - 2011 VL - 136 SP - 2427 EP - 2440 ER - TY - JOUR A1 - Meyer, C. A1 - Heming, R. A1 - Gurevich, E. L. A1 - Marggraf, U. A1 - Okruss, M. A1 - Florek, S. A1 - Franzke, J. T1 - Radiofrequency driven and low cost fabricated microhollow cathode discharge for gaseous atomic emission spectrometry JF - J. An. At. Spectr. Y1 - 2011 SN - 0267-9477 VL - 26 SP - 505 EP - 510 ER - TY - JOUR A1 - Gurevich, E. L. T1 - Self-organized nanopatterns in thin layers of superheated liquid metals JF - Phys. Rev. E Y1 - 2011 SN - 1063-651X VL - 83 SP - 031604 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Temchura, V. V. A1 - Ueberla, K. A1 - Zybin, A. T1 - Analytical features of particle counting sensor based on plasmon assisted microscopy of nano objects JF - Sens. Act. B-Chem. Y1 - 2011 U6 - http://dx.doi.org/10.1016/j.snb.2011.09.050 SN - 0925-4005 VL - 160 SP - 1210 EP - 1215 ER - TY - JOUR A1 - Xiao, S. A1 - Gurevich, E. L. A1 - Ostendorf, A. T1 - Incubation effect and its influence on laser patterning of ITO thin film JF - Appl. Phys. A Y1 - 2012 VL - 107 SP - 333 EP - 338 ER - TY - JOUR A1 - Gurevich, E. L. A1 - Kittel, S. A1 - Hergenröder, R. T1 - Experimental and numerical study of surface alloying by femtosecond laser radiation JF - Appl. Surf. Sci. Y1 - 2012 SN - 0169-4332 VL - 258 SP - 2576 EP - 2579 ER - TY - JOUR A1 - Meyer, C. A1 - Franzke, J. A1 - Gurevich, E. L. T1 - Experimental estimation of the surface charge density in micro dielectric barrier discharges JF - J. Phys. D: Appl. Phys. Y1 - 2012 U6 - http://dx.doi.org/10.1088/0022-3727/45/35/355205 SN - 0022-3727 VL - 45 SP - 355205 ER - TY - JOUR A1 - Gurevich, E. L. T1 - On the influence of surface plasmon-polariton waves on pattern formation upon laser ablation JF - Appl. Surf. Sci. Y1 - 2013 SN - 0169-4332 VL - 278 SP - 52 EP - 56 ER -