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  •   Domovská stránka repozitáře
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  • Příprava a charakterizace nanostruktur
  • Procházení dle data publikování
  •   Domovská stránka repozitáře
  • Publikační činnost pracovníků VUT v Brně
  • Středoevropský technologický institut VUT
  • Příprava a charakterizace nanostruktur
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Procházení Příprava a charakterizace nanostruktur dle data publikování

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  • X-ray induced electrostatic graphene doping via defect charging in gate dielectric 

    Procházka, Pavel; Mareček, David; Lišková, Zuzana; Čechal, Jan; Šikola, Tomáš (NPG, 2017-04-03)
    Graphene field effect transistors are becoming an integral part of advanced devices. Hence, the advanced strategies for both characterization and tuning of graphene properties are required. Here we show that the X-ray ...
  • Plasmonic Enhancement and Polarization Dependence of Nonlinear Upconversion Emissions from Single Gold Nanorod@SiO2@CaF2:Yb3+,Er3+ Hybrid Core-Shell-Satellite Nanostructures 

    He, Jijun; Zheng, Wei; Ligmajer, Filip; Chan, Chi-Fai; Bao, Zhiyong; Wong, Ka-Leung; Chen, Xueyuan; Hao, Jianhua; Dai, Jiyan; Yu, Siu-Fung; Lei, Dang Yuan (Springer Nature, 2017-05-19)
    Lanthanide-doped upconversion nanocrystals (UCNCs) have recently become an attractive nonlinear fluorescence material for use in bioimaging because of their tunable spectral characteristics and exceptional photostability. ...
  • Imaging of near-field interference patterns by a-SNOM – influence of illumination wavelength and polarization state 

    Dvořák, Petr; Édes, Zoltán; Kvapil, Michal; Šamořil, Tomáš; Ligmajer, Filip; Hrtoň, Martin; Kalousek, Radek; Křápek, Vlastimil; Dub, Petr; Spousta, Jiří; Varga, Peter; Šikola, Tomáš (Optical Society of America, 2017-07-05)
    Scanning near-field optical microscopy (SNOM) in combination with interference structures is a powerful tool for imaging and analysis of surface plasmon polaritons (SPPs). However, the correct interpretation of SNOM images ...
  • Immobilization of Platelet-Rich Plasma onto COOH Plasma-Coated PCL Nanofibers Boost Viability and Proliferation of Human Mesenchymal Stem Cells 

    Solovieva, Anastasiya; Miroshnichenko, Svetlana; Kovalskii, Andrey; Permyakova, Elizaveta; Popov, Zakhar; Dvořáková, Eva; Kiryukhantsev-Korneev, Philip; Obrosov, Aleksei; Polčák, Josef; Zajíčková, Lenka; Shtansky, Dmitry V.; Manakhov, Anton (MDPI, 2017-12-20)
    The scaffolds made of polycaprolactone (PCL) are actively employed in different areas of biology and medicine, especially in tissue engineering. However, the usage of unmodified PCL is significantly restricted by the ...
  • Magnetization reversal and confinement effects across the metamagnetic phase transition in mesoscale FeRh structures 

    Arregi Uribeetxebarria, Jon Ander; Horký, Michal; Fabianová, Kateřina; Tolley, Robert; Fullerton, E.E.; Uhlíř, Vojtěch (IOP PUBLISHING LTD, 2018-03-14)
    The effects of mesoscale confinement on the metamagnetic behavior of lithographically patterned FeRh structures are investigated via Kerr microscopy. Combining the temperatureand field-dependent magnetization reversal of ...
  • Catalyst–substrate interaction and growth delay in vapor–liquid–solid nanowire growth 

    Kolíbal, Miroslav; Pejchal, Tomáš; Musálek, Tomáš; Šikola, Tomáš (IOP Publishing, 2018-03-26)
    Understanding of the initial stage of nanowire growth on a bulk substrate is crucial for the rational design of nanowire building blocks in future electronic and optoelectronic devices. Here, we provide in situ scanning ...
  • Research Update: Focused ion beam direct writing of magnetic patterns with controlled structural and magnetic properties 

    Urbánek, Michal; Flajšman, Lukáš; Křižáková, Viola; Gloss, Jonáš; Horký, Michal; Schmid, Michael; Varga, Peter (AIP Publishing, 2018-06-01)
    Focused ion beam irradiation of metastable Fe78Ni22 thin films grown on Cu(100) substrates is used to create ferromagnetic, body-centered cubic patterns embedded into paramagnetic, face-centered-cubic surrounding. The ...
  • Comparative study of plasmonic antennas fabricated by electron beam and focused ion beam lithography 

    Horák, Michal; Bukvišová, Kristýna; Švarc, Vojtěch; Jaskowiec, Jiří; Křápek, Vlastimil; Šikola, Tomáš (Springer Nature, 2018-06-25)
    We present a comparative study of plasmonic antennas fabricated by electron beam lithography and direct focused ion beam milling. We have investigated optical and structural properties and chemical composition of gold ...
  • Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques 

    Dhankhar, Meena; Vaňatka, Marek; Urbánek, Michal (MyJove Corp., 2018-07-02)
    Electron and x-ray magnetic microscopies allow for high-resolution magnetic imaging down to tens of nanometers. However, the samples need to be prepared on transparent membranes which are very fragile and difficult to ...
  • Apparatus for dosing liquid water in ultrahigh vacuum 

    Balajka, Jan; Pavelec, Jiří; Komora, Mojmír; Schmid, Michael; Diebold, Ulrike (AIP Publishing, 2018-08-30)
    The structure of the solid-liquid interface often defines the function and performance of materials in applications. To study this interface at the atomic scale, we extended an ultrahigh vacuum (UHV) surface-science chamber ...
  • Invited Article: Direct phase mapping of broadband Laguerre-Gaussian metasurfaces 

    Faßbender, Alexander; Babocký, Jiří; Dvořák, Petr; Křápek, Vlastimil; van der Linden, Stefan (AIP Publishing, 2018-11-01)
    We report on the fabrication of metasurface phase plates consisting of gold nanoantenna arrays that generate Laguerre-Gaussian modes from a circularly polarized Gaussian input beam. The corresponding helical phase profiles ...
  • High-Resolution Quantitative Phase Imaging of Plasmonic Metasurfaces with Sensitivity down to a Single Nanoantenna 

    Bouchal, Petr; Dvořák, Petr; Babocký, Jiří; Bouchal, Zdeněk; Ligmajer, Filip; Hrtoň, Martin; Křápek, Vlastimil; Faßbender, Alexander; Linden, Stefan; Chmelík, Radim; Šikola, Tomáš (American Chemical Society, 2019-01-02)
    Optical metasurfaces have emerged as a new generation of building blocks for multifunctional optics. Design and realization of metasurface elements place everincreasing demands on accurate assessment of phase alterations ...
  • The growth of metastable fcc Fe78Ni22 thin films on H-Si(100) substrates suitable for focused ion beam direct magnetic patterning 

    Gloss, Jonáš; Horký, Michal; Křižáková, Viola; Flajšman, Lukáš; Schmid, Michael; Urbánek, Michal; Varga, Peter (Elsevier, 2019-03-01)
    We have studied the growth of metastable face-centered-cubic, non-magnetic Fe78Ni22 thin films on silicon substrates. These films undergo a magnetic (paramagnetic to ferromagnetic) and structural (fcc to bcc) phase ...
  • Electrodeposition of Silver Amalgam on Thin Gold Film Electrodes for Voltammetric Detection of 4Nitrophenol and DNA Labeled with Osmium TetroxideBipyridine Complex 

    Havranová, Pavlína; Ligmajer, Filip; Daňhel, Aleš (Wiley, 2019-10-22)
    Herein, electrodes made of vapordeposited thin gold films (vAuE) were used as an alternative substrate for the electrodeposition of silver amalgam particles (AgAPs), next to indium tin oxide and pyrolytic graphite, which ...
  • Limits of Babinet’s principle for solid and hollow plasmonic antennas 

    Horák, Michal; Křápek, Vlastimil; Hrtoň, Martin; Konečná, Andrea; Ligmajer, Filip; Stöger-Pollach, Michael; Šamořil, Tomáš; Paták, Aleš; Édes, Zoltán; Metelka, Ondřej; Babocký, Jiří; Šikola, Tomáš (Springer Nature, 2019-12-01)
    We present an experimental and theoretical study of Babinet’s principle of complementarity in plasmonics.We have used spatially-resolved electron energy loss spectroscopy and cathodoluminescence to investigate electromagnetic ...
  • Independent engineering of individual plasmon modes in plasmonic dimers with conductive and capacitive coupling 

    Křápek, Vlastimil; Konečná, Andrea; Horák, Michal; Ligmajer, Filip; Stöger-Pollach, Michael; Hrtoň, Martin; Babocký, Jiří; Šikola, Tomáš (WALTER DE GRUYTER GMBH, 2020-03-01)
    We revisit plasmon modes in nanoparticle dimers with conductive or insulating junction resulting in conductive or capacitive coupling. In our study, which combines electron energy loss spectroscopy, optical spectroscopy, ...
  • Low-energy electron microscopy of graphene outside UHV: electron-induced removal of PMMA residues used for graphene transfer 

    Materna Mikmeková, Eliška; Müllerová, Ilona; Frank, Luděk; Polčák, Josef; Sluyterman, Seyno; Lejeune, Michaël; Konvalina, Ivo (Elsevier, 2020-05-01)
    Two-dimensional materials, such as graphene, are usually prepared by chemical vapor deposition (CVD) on selected substrates, and their transfer is completed with a supporting layer, mostly polymethyl methacrylate (PMMA). ...
  • Plasmonic Antennas with Electric, Magnetic, and Electromagnetic Hot Spots Based on Babinet's Principle 

    Hrtoň, Martin; Konečná, Andrea; Horák, Michal; Šikola, Tomáš; Křápek, Vlastimil (American Physical Society, 2020-05-19)
    We theoretically study plasmonic antennas featuring areas of extremely concentrated electric or magnetic field, known as hot spots. We combine two types of electric-magnetic complementarity to increase the degree of freedom ...
  • Single-layer graphene on epitaxial FeRh thin films 

    Uhlíř, Vojtěch; Pressacco, Frederico; Arregi Uribeetxebarria, Jon Ander; Procházka, Pavel; Průša, Stanislav; Potoček, Michal; Šikola, Tomáš; Čechal, Jan; Bendounan, Azzedine; Sirotti, F. (ELSEVIER, 2020-06-01)
    Graphene is a 2D material that displays excellent electronic transport properties with prospective applications in many fields. Inducing and controlling magnetism in the graphene layer, for instance by proximity of magnetic ...
  • Using Cerenkov radiation for measuring the refractive index in thick samples by interferometric cathodoluminescence 

    Stöger-Pollach, Michael; Löffler, Stefan; Maurer, Niklas; Bukvišová, Kristýna (Elsevier, 2020-07-01)
    Cathodoluminescence (CL) has evolved into a standard analytical technique in (scanning) transmission electron microscopy. CL utilizes light excited due to the interactions between the electron-beam and the sample. In the ...
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