Zobrazeno 1 - 10 of 60 pro vyhledávání: '"Fabrice Harms"'
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Akademický článek
High-Sensitivity X-ray Phase Imaging System Based on a Hartmann Wavefront Sensor
Autor: Ginevra Begani Provinciali, Martin Piponnier, Laura Oudjedi, Xavier Levecq, Fabrice Harms, Alessia Cedola, Ombeline de La Rochefoucauld, Philippe Zeitoun
Publikováno v: Condensed Matter, Vol 7, Iss 1, p 3 (2021)
The Hartman wavefront sensor can be used for X-ray phase imaging with high angular resolution. The Hartmann sensor is able to retrieve both the phase and absorption from a single acquisition. The system calculates the shift in a series of apertures i
Externí odkaz: https://doaj.org/article/20e36d795edd49e587d88fb2f82e2f57
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2
Akademický článek
EUV and Hard X-ray Hartmann Wavefront Sensing for Optical Metrology, Alignment and Phase Imaging
Autor: Ombeline de La Rochefoucauld, Guillaume Dovillaire, Fabrice Harms, Mourad Idir, Lei Huang, Xavier Levecq, Martin Piponnier, Philippe Zeitoun
Publikováno v: Sensors, Vol 21, Iss 3, p 874 (2021)
For more than 15 years, Imagine Optic have developed Extreme Ultra Violet (EUV) and X-ray Hartmann wavefront sensors for metrology and imaging applications. These sensors are compatible with a wide range of X-ray sources: from synchrotrons, Free Elec
Externí odkaz: https://doaj.org/article/da53574d5a9e44ba884bbca6e9c3384b
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5
Enhanced neuroimaging with a calcium sensor in the live adultDrosophila Melanogasterbrain using closed-loop adaptive optics light-sheet microscopy
Autor: Antoine Hubert, Georges Farkouh, Fabrice Harms, Cynthia Veilly, Sophia Imperato, Mathias Mercier, Vincent Loriette, François Rouyer, Alexandra Fragola
We report on an Adaptive Optics (AO) Light-Sheet Fluorescence Microscope compatible with neuroimaging, based on direct wavefront sensing without the requirement of a guide star. We demonstrate fast AO correction, typically within 500ms, of in-depth a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee73117a4a152e61aa0ecb5fabed716b
https://doi.org/10.1101/2023.01.06.522997
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8
Single-shot quantitative aberration and scattering length measurements in mouse brain tissues using an extended-source Shack-Hartmann wavefront sensor
Autor: Sophia Imperato, Fabrice Harms, Antoine Hubert, Mathias Mercier, Laurent Bourdieu, Alexandra Fragola
Publikováno v: Optics express. 30(9)
Deep fluorescence imaging in mammalian brain tissues remains challenging due to scattering and optical aberration-induced loss in signal and resolution. Correction of aberrations using adaptive optics (AO) requires their reliable measurement in the t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::428d469bf8c6b26749dbc42639602a90
https://pubmed.ncbi.nlm.nih.gov/35473251
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10
Solid-target seeded soft X-ray laser for short pulses and optical vortex amplification
Autor: Elsa Baynard, A. K. Pandey, Olivier Larroche, Sophie Kazamias, F. Sanson, Philippe Balcou, O. Guilbaud, Guillaume Dovillaire, David Ros, J. Demailly, Bruno Lucas, Moana Pittman, Fabrice Harms, Irene Papagiannouli, Andréa Le Marec, Annie Klisnick, O. Neveu, Guillaume Beaugrand, Annette Calisti
Publikováno v: XVII International Conference on X-Ray Lasers
XVII International Conference on X-Ray Lasers, Dec 2020, Online Only, France. pp.29, ⟨10.1117/12.2593356⟩
We report temporal coherence measurement of solid-target plasma-based soft X-ray laser (XRL) in amplified spontaneous emission (ASE) mode. By changing the XRL pumping angle, we generate lasing at two-times higher electron density than the routine con
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42229aacff76cfb4c88d52f8a36bacdd
https://doi.org/10.1117/12.2593356
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