Ústav fyzikálního inženýrství
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X-ray microtomography–based atlas of mouse cranial development
(Oxford University Press, 2021-03-02)X-ray microtomography (CT) has become an invaluable tool for non-destructive analysis of biological samples in the field of developmental biology. Mouse embryos are a typical model for investigation of human developmental ... -
Laser-induced breakdown spectroscopy as a straightforward bioimaging tool for plant biologists; the case study for assessment of photon-upconversion nanoparticles in Brassica oleracea L. plant
(Elsevier, 2021-05-01)The main purpose of this work is to thoroughly describe the implementation protocol of laser-induced breakdown spectroscopy (LIBS) method in the plant analysis. Numerous feasibility studies and recent progress in instrumentation ... -
Spin stress contribution to the lattice dynamics of FePt
(AAAS, 2020-06-01)Invar-behavior occurring in many magnetic materials has long been of interest to materials science. Here, we show not only invar behavior of a continuous film of FePt but also even negative thermal expansion of FePt ... -
Methodology and applications of elemental mapping by laser induced breakdown spectroscopy
(ELSEVIER, 2021-02-22)In the last few years, LIBS has become an established technique for the assessment of elemental concentrations in various sample types. However, for many applications knowledge about the overall elemental composition is ... -
Magnetic Near Field Imaging with Electron Energy Loss Spectroscopy Based on Babinet's Principle
(Cambridge University Press, 2020-07-30)We present a study of Babinet’s principle of complementarity in plasmonics focused on measuring the magnetic near field by EELS. We have studied bow-tie and diabolo antennas and elementary disc-shaped plasmonic antennas. -
Plasmonic Properties of Silver Amalgam Nanoparticles Studied by Analytical Transmission Electron Microscopy
(Cambridge University Press, 2020-07-30)We present a study of optical properties of silver amalgam and demonstrate the plasmonic nature of its nanoparticles as they support localized surface plasmon resonances (LSPR), which are self-sustained collective oscillations ... -
Automated interpretation of time-lapse quantitative phase image by machine learning to study cellular dynamics during epithelial-mesenchymal transition
(SPIE, 2020-08-31)Significance: Machine learning is increasingly being applied to the classification of microscopic data. In order to detect some complex and dynamic cellular processes, time-resolved live-cell imaging might be necessary. ... -
Ellipsometric characterization of inhomogeneous thin films with complicated thickness non-uniformity: application to inhomogeneous polymer-like thin films
(Optical Society of America, 2020-11-23)The method of variable angle spectroscopic ellipsometry usable for the complete optical characterization of inhomogeneous thin films exhibiting complicated thickness non-uniformity together with transition layers at their ... -
Silicon waveguides with graphene: coupling of waveguide mode to surface plasmons
(IOP Publishing, 2020-08-18)Silicon waveguides with graphene layers have been recently intensively studied for their potential as fast and low-power electro-optic modulators with small footprints. In this paper we show that in the optical wavelength ... -
Laser-Induced Breakdown Spectroscopy analysis of polymers in three different atmospheres
(Elsevier, 2021-01-22)This paper deals with the analysis of polymer materials of various composition and molecular structure using Laser-Induced Breakdown Spectroscopy (LIBS). To make the discussion more transparent, we studied structurally ... -
Methodology for the Implementation of Internal Standard to Laser-Induced Breakdown Spectroscopy Analysis of Soft Tissues
(Sensors, 2021-01-29)The improving performance of the laser-induced breakdown spectroscopy (LIBS) triggered its utilization in the challenging topic of soft tissue analysis. Alterations of elemental content within soft tissues are commonly ... -
Apparatus for dosing liquid water in ultrahigh vacuum
(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 ... -
Influence of compound twinning on Young's moduli in NiTi martensite
(EDP Sciences, 2009-09-07)NiTi shape memory alloy has been widely used in many engineering applications (e.g. mechatronic devices, medical tools, seismic sensors etc.). In this work, the Young's moduli of twinned NiTi martensite in selected ... -
Nanoscale Estimation of Coating Thickness on Substrates via Standardless BSE Detector Calibration
(MDPI, 2020-02-15)The thickness of electron transparent samples can be measured in an electron microscope using several imaging techniques like electron energy loss spectroscopy (EELS) or quantitative scanning transmission electron microscopy ... -
Low-energy electron microscopy of graphene outside UHV: electron-induced removal of PMMA residues used for graphene transfer
(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). ... -
Calcium and fluorine signals in HS-LEIS for CaF2(111) and powder-Quantification of atomic surface concentrations using LiF(001), Ca, and Cu references
(AIP Publishing, 2020-12-01)The powder of CaF2 has been proposed as a practical reference for the quantitation of Ca and F in low energy ion scattering (LEIS) analysis. It is chemically inert, easy to clean, and inexpensive. LEIS is extremely surface ... -
High-Resolution Quantitative Phase Imaging of Plasmonic Metasurfaces with Sensitivity down to a Single Nanoantenna
(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 ... -
Plasmonic Antennas with Electric, Magnetic, and Electromagnetic Hot Spots Based on Babinet's Principle
(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 ... -
Imaging of Electric and Magnetic Near Field
(Wiley, 2020-07-10)Localized surface plasmon resonances are self-sustained collective oscillations of free electrons in metallic nanostructures. We have demonstrated the possibility to map their electric and magnetic near field by electron ... -
Structural and optical properties of monocrystalline and polycrystalline gold plasmonic nanorods
(The Optical Society, 2020-11-03)The quality of lithographically prepared structures is intimately related to the properties of the metal film from which they are fabricated. Here we compare two kinds of thin gold films on a silicon nitride membrane: a ...
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