Zobrazeno 1 - 10
of 198
pro vyhledávání: '"Tiemeijer P"'
Autor:
Tiemeijer Peter, Dennemans Terry, Henstra Sander, Krishnan Dileep, Lazar Sorin, Longo Paolo, Meledina Maria, Thomassen Sjaak, Verhoeven Wouter
Publikováno v:
BIO Web of Conferences, Vol 129, p 05015 (2024)
Externí odkaz:
https://doaj.org/article/37b9a3fe8bdd487a996d20d87322db7c
Autor:
Lazar Sorin, Meledina Maria, Schnohr Claudia S., Hoeche Thomas, Tiemeijer Peter, Longo Paolo, Freitag Bert
Publikováno v:
BIO Web of Conferences, Vol 129, p 06018 (2024)
Externí odkaz:
https://doaj.org/article/2cb7e849454143b881a26879f701fd73
Autor:
Meledina Maria, Krishnan Dileep, Jannis Daen, Wirix Maarten, Wu Xiaochao, Simon Ulrich, Lazar Sorin, Tiemeijer Peter, Longo Paolo
Publikováno v:
BIO Web of Conferences, Vol 129, p 26015 (2024)
Externí odkaz:
https://doaj.org/article/9bf77bdaf09c49e2b3cf4a950c42d190
Autor:
Bertoni, Giovanni, Rotunno, Enzo, Marsmans, Daan, Tiemeijer, Peter, Tavabi, Amir H., Dunin-Borkowski, Rafal E., Grillo, Vincenzo
Publikováno v:
Ultramicroscopy 2023
The key to optimizing spatial resolution in a state-of-the-art scanning transmission electron microscope is the ability to precisely measure and correct for electron optical aberrations of the probe-forming lenses. Several diagnostic methods for aber
Externí odkaz:
http://arxiv.org/abs/2204.11126
Autor:
Tavabi, A. H., Rosi, P., Roncaglia, A., Rotunno, E., Beleggia, M., Lu, P-H, Belsito, L., Pozzi, G., Frabboni, S., Tiemeijer, P., Borkowski, R. E. Dunin., Grillo, V.
We report the use of an electrostatic MEMS-based device to produce high quality electron vortex beams with more than 1000 quanta of orbital angular momentum (OAM). Diffraction and off-axis electron holography experiments are used to show that the dia
Externí odkaz:
http://arxiv.org/abs/2203.00477
Autor:
Rosi, P., Clausen, A., Weber, D., Tavabi, A. H., Frabboni, S., Tiemeijer, P., Dunin-Borkowski, R. E., Rotunno, E., Grillo, V.
We report on the automatic alignment of a transmission electron microscope equipped with an orbital angular momentum sorter using a convolutional neural network. The neural network is able to control all relevant parameters of both the electron-optic
Externí odkaz:
http://arxiv.org/abs/2111.05032
Autor:
Tavabi, A. H., Rosi, P., Ravelli, R. B. G., Gijsbers, A., Rotunno, E., Guner, T., Zhang, Y., Rocaglia, A., Belsito, L., Pozzi, G., Tibeau, D., Gazzadi, G., Ghosh, M., Frabboni, S., Peters, P. J., Karimi, E., Tiemeijer, P., Dunin-Borkowski, R. E., Grillo, V.
In quantum mechanics, each conserved quantity (e.g., energy, position, linear momentum and angular momentum) is associated with a Hermitian operator. Its expected value can then be determined by performing a measurement on the wavefunction. In modern
Externí odkaz:
http://arxiv.org/abs/2110.03391
Autor:
Rotunno, E., Tavabi, A. H., Rosi, P., Frabboni, S., Tiemeijer, P., Dunin-Borkowski, R. E., Grillo, V.
A convolutional neural network is used to align an orbital angular momentum sorter in a transmission electron microscope. The method is demonstrated using simulations and experimentally. As a result of its accuracy and speed, it offers the possibilit
Externí odkaz:
http://arxiv.org/abs/2101.04358
Akademický článek
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Autor:
Tavabi, Amir H., Rosi, Paolo, Pozzi, Giulio, Roncaglia, Alberto, Frabboni, Stefano, Rotunno, Enzo, Lu, Peng-Han, Nijland, Robert, Tiemeijer, Peter, Karimi, Ebrahim, Dunin-Borkowski, Rafal E., Grillo, Vincenzo
Publikováno v:
Phys. Rev. Lett. 126, 094802 (2021)
We report the first experimental demonstration of an electrostatic electron orbital angular momentum (OAM) sorter, which can be used to analyze the OAM states of electrons in a transmission electron microscope. We verify the sorter functionality for
Externí odkaz:
http://arxiv.org/abs/1910.03706