Results 21 to 30 of about 5,007,528 (396)

Attosecond metrology in a continuous-beam transmission electron microscope

Science Advances, 2020
Electron microscopy is advanced to attosecond resolution by modulating the beam with the field cycles of a continuous-wave laser. Electron microscopy can visualize the structure of complex materials with atomic and subatomic resolution, but ...
A. Ryabov, J. Thurner, D. Nabben, M. Tsarev, P. Baum   +4 more
semanticscholar   +1 more source

Development of a high brightness ultrafast Transmission Electron Microscope based on a laser-driven cold field emission source. [PDF]

Ultramicroscopy, 2017
We report on the development of an ultrafast Transmission Electron Microscope based on a cold field emission source which can operate in either DC or ultrafast mode. Electron emission from a tungsten nanotip is triggered by femtosecond laser pulses which
F. Houdellier, G. Caruso, S. Weber, M. Kociak, A. Arbouet   +4 more
semanticscholar   +1 more source

Single atom manipulation and control in a scanning transmission electron microscope [PDF]

, 2017
We demonstrate that the sub-atomically focused beam of a scanning transmission electron microscope (STEM) can be used to controllably manipulate individual dopant atoms in a 2D graphene lattice.
O. Dyck, Songkil Kim, Sergei V. Kalinin, S. Jesse   +3 more
semanticscholar   +1 more source

Isotope analysis in the transmission electron microscope [PDF]

Nature Communications, 2016
The Ångström-sized probe of the scanning transmission electron microscope can visualize and collect spectra from single atoms. This can unambiguously resolve the chemical structure of materials, but not their isotopic composition.
T. Susi, C. Hofer, Giacomo Argentero, Gregor T. Leuthner, T. Pennycook, C. Mangler, Jannik C. Meyer, J. Kotakoski   +7 more
semanticscholar   +1 more source

Multicolour correlative imaging using phosphor probes [PDF]

, 2015
Correlative light and electron microscopy exploits the advantages of optical methods, such as multicolour probes and their use in hydrated live biological samples, to locate functional units, which are then correlated with structural details that can be ...
A Rapaport, A Salimian, Alireza Samilian, AV Agronskaia, BS Padman, C Rijnsoever van, CJ Peddie, CM Anderson, DJ Gargas, DR Glenn, E Bos, E Kimura, George R. Fern, GH Patterson, H Nishiyama, I Johnson, Ian E. G. Morrison, IEG Morrison, Jack Silver, K Riwotzki, L Hodgson, L MacDonald, N Liv, Paolo Coppo, Peter J. O’Toole, R Kumar, R Nisman, RKP Benninger, Robert Withnall, T Furukawa, T Hirai, Terry G. Ireland, TJ Deerinck, Z Mahfoud   +33 more
core   +1 more source

Pilot study on the effects of preservatives on corneal collagen parameters measured by small angle X-ray scattering analysis

BMC Research Notes, 2021
Objective Small angle X-ray scattering (SAXS) analysis is a sensitive way of determining the ultrastructure of collagen in tissues. Little is known about how parameters measured by SAXS are affected by preservatives commonly used to prevent autolysis. We
Susyn Joan Kelly, Lizette duPlessis, John Soley, Frazer Noble, Hannah Carolyn Wells, Patrick John Kelly   +5 more
doaj   +1 more source

Design and characterization of dielectric filled TM$_{110}$ microwave cavities for ultrafast electron microscopy [PDF]

, 2018
Microwave cavities oscillating in the TM$_{110}$ mode can be used as dynamic electron-optical elements inside an electron microscope. By filling the cavity with a dielectric material it becomes more compact and power efficient, facilitating the ...
A. H. Kemper, Collin R. E., E. H. Rietman, E. R. Kieft, Griffiths D. J., H. A. van Doorn, I. Koole, J. F. M. van Rens, O. J. Luiten, P. H. A. Mutsaers, Pozar D. M., W. Verhoeven   +11 more
core   +2 more sources

The Impact of Multiple Autoclave Cycles on the Surface Roughness of Thermally Treated Nickel-Titanium Endodontic Files

Advances in Materials Science and Engineering, 2022
In this study, we evaluate the surface roughness (SR) of three thermally treated nickel-titanium rotary instruments (i.e., TruNatomy [TN], ProTaper Gold [PTG], and EdgeTaper Platinum [ETP]) after impact testing with multiple autoclave sterilization ...
Raidan Ba-Hattab, Rahaf A. Almohareb, Rana Alkhalaf, Shikhah Binnjefan, Meral Sulayem, Reem M. Barakat   +5 more
doaj   +1 more source

Designs for a quantum electron microscope. [PDF]

Ultramicroscopy, 2015
One of the astounding consequences of quantum mechanics is that it allows the detection of a target using an incident probe, with only a low probability of interaction of the probe and the target. This 'quantum weirdness' could be applied in the field of
P. Kruit, R. Hobbs, Chung-Soo Kim, Yujia Yang, V. Manfrinato, J. Hammer, Sebastian Thomas, P. Weber, B. Klopfer, C. Kohstall, T. Juffmann, M. Kasevich, P. Hommelhoff, K. Berggren   +13 more
semanticscholar   +1 more source

A nanofabricated, monolithic, path-separated electron interferometer [PDF]

, 2016
We report a self-aligned, monolithic electron interferometer, consisting of two 45 nm thick silicon layers separated by 20 $\mu$m. This interferometer was fabricated from a single crystal silicon cantilever on a transmission electron microscope grid by ...
Agarwal, Akshay, Berggren, Karl K., Hobbs, Richard, Kim, Chung-Soo, van Dyck, Dirk   +4 more
core   +2 more sources