Zobrazeno 1 - 10 of 44 pro vyhledávání: '"Badr Mohamed Ibrahim Shalaby"'
1
Spatial Beam Self-Cleaning in Second-Harmonic Generation
Autor: R. Fona, Guy Millot, Stefan Wabnitz, Katarzyna Krupa, Badr Mohamed Ibrahim Shalaby, Vincent Couderc, Fabio Baronio, Alexis Labruyère, Alessandro Tonello, Alejandro B. Aceves
Publikováno v: Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Scientific Reports
We experimentally demonstrate the spatial self-cleaning of a highly multimode optical beam, in the process of second-harmonic generation in a quadratic nonlinear potassium titanyl phosphate crystal. As the beam energy grows larger, the output beam fr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f47ce36148af7d4adbdf8cb05c882ef
http://link.springer.com/article/10.1038/s41598-020-64080-7
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2
All multimode smart endoscopic cleaning system monitored by libs spectroscopy
Autor: Y. Leventoux, Marc Fabert, Dominique Pagnoux, Vincent Couderc, Sébastien Février, Tigran Mansuryan, Badr Mohamed Ibrahim Shalaby
Publikováno v: CLEO Europe
CLEO Europe, Jun 2021, virtual meeting, France
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Conference on Lasers and Electro-Optics Europe 2021
Conference on Lasers and Electro-Optics Europe 2021, Jun 2021, Munich, Germany. pp.1-1, ⟨10.1109/CLEO/Europe-EQEC52157.2021.9542711⟩
HAL
Many industrial applications require careful regular or periodic cleaning of inner regions of metallic elements such as citerns, tanks or tubes [1] . Techniques like sandblasting or chemical cleaning are often unsuitable as they cannot allow proper c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caf6b64a12c1db8aa4ff776eb1ad70e8
https://hal.archives-ouvertes.fr/hal-03358072
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3
A Pulsed Modulator Combined With Very High PRF Photoconductive Switches to Build a Self-Scanning UWB Radiation Source
Autor: Laurent Pecastaing, Romain Negrier, Michèle Lalande, Antoine Silvestre de Ferron, Badr Mohamed Ibrahim Shalaby, Joël Andrieu, Vincent Couderc, Valérie Bertrand
Publikováno v: IEEE Transactions on Plasma Science
IEEE Transactions on Plasma Science, Institute of Electrical and Electronics Engineers, 2016, 44 (10), pp.1894-1901. ⟨10.1109/TPS.2016.2547279⟩
International audience; The development and construction of self-scanning capability short-range ultrawideband (UWB) radar is forthcoming for the French Military for Defense. This paper is devoted to the presentation of the self-scanning radar princi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80ec3bd595c7c36848ae9c1d3bd64dbd
https://doi.org/10.1109/tps.2016.2547279
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4
High-PRF UWB Optoelectronic Radar System: A CLEAN-Type Algorithm to Overcome Depth Limitation
Autor: Joël Andrieu, Cyril Decroze, Vincent Couderc, Thomas Fromenteze, Michèle Lalande, Badr Mohamed Ibrahim Shalaby, Romain Negrier, David Carsenat
Publikováno v: IEEE Transactions on Antennas and Propagation
IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2016, 64 (3), pp.1080-1088. ⟨10.1109/TAP.2016.2517672⟩
The ultrafast speed and the large spatial area scanning autonomy are the two main advantages of the new radar presented in this paper. Indeed, the autonomous beam scanning capability with high pulse repetition frequency (PRF) is obtained by coherent
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba90626ddfa62b7364fbe7950d2b8df3
https://doi.org/10.1109/tap.2016.2517672
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7
Spatial beam self-cleaning in multimode fibres
Autor: Alain Barthélémy, Guy Millot, Katarzyna Krupa, Stefan Wabnitz, Alessandro Tonello, Vincent Couderc, Badr Mohamed Ibrahim Shalaby, Marc Fabert
Publikováno v: Nature Photonics
Nature Photonics, Nature Publishing Group, 2017, 11 (4), pp.237-241. 〈10.1038/nphoton.2017.32〉
Nature Photonics, Nature Publishing Group, 2017, 11 (4), pp.237-241. ⟨10.1038/NPHOTON.2017.32⟩
Multimode optical fibres are enjoying a renewed attention, boosted by the urgent need to overcome the current capacity crunch of single-mode fibre systems and by recent advances in multimode complex nonlinear optics [1-13]. In this work, we demonstra
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e397c5ff4c9fb38eaff5e937c24b50f4
http://hdl.handle.net/11573/1214280
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8
EQUIVALENT MODEL OF PHOTOSWITCH: APPLICATION TO THE UWB ANTENNA DESIGN INTEGRATING IMPULSE FEEDING
Autor: Laurent Pecastaing, Romain Negrier, Michèle Lalande, Valérie Bertrand, Vincent Couderc, Joël Andrieu, and Antoine De Ferron, Badr Mohamed Ibrahim Shalaby
Publikováno v: Progress In Electromagnetics Research C. 46:145-151
Optoelectronic devices triggered by a laser ∞ash and operating in linear switching regime allow the generation of short pulses with small time jitters (2ps typically). An Ultra Wide Band antenna array combining as many of this photoswitches as ante
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::370bb4ce167eb9bc1359aa6a04fe6414
https://doi.org/10.2528/pierc13120301
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9
Spatiotemporal characterization of supercontinuum extending from the visible to the mid-infrared in a multimode graded-index optical fiber
Autor: Katarzyna Krupa, Alessandro Tonello, R. Guenard, Philippe Leproux, Marc Fabert, Alain Barthelemy, Stefan Wabnitz, Vincent Couderc, Dominique Pagnoux, Abdelkrim Bendahmane, Badr Mohamed Ibrahim Shalaby, R. Dupiol, Guy Millot, Christophe Louot
Publikováno v: Optics Letters
Optics Letters, Optical Society of America-OSA Publishing, 2016, 41 (21), pp.5007-5010. ⟨10.1364/OL.41.005785⟩
Optics Letters, Optical Society of America, 2016, 41 (21), pp.5007-5010. 〈10.1364/OL.41.005785〉
We experimentally demonstrate that pumping a graded-index multimode fiber with sub-ns pulses from a microchip Nd:YAG laser leads to spectrally flat supercontinuum generation with a uniform bell-shaped spatial beam profile extending from the visible t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b1b72e249385ff37843f231f8f5bf93
https://pubmed.ncbi.nlm.nih.gov/27973502
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10
Spatial and spectral nonlinear shaping of multimode waves
Autor: Marc Fabert, Alessandro Tonello, Katarzyna Krupa, Alain Barthélémy, Guy Millot, Badr Mohamed Ibrahim Shalaby, Abdelkrim Bendahmane, Stefan Wabnitz, Vincent Couderc, R. Dupiol
Publikováno v: IEEE IPC Nonlinear and Ultrafast Optics
IEEE IPC Nonlinear and Ultrafast Optics, Oct 2016, Waikoloa, Hawai, United States
IEEE IPC Nonlinear and Ultrafast Optics, IEEE, Oct 2016, Waikoloa, Hawai, United States
We demonstrate a novel nonlinear dynamics of multimode fibers that reshapes their spectral and spatial beam profiles, based on spatiotemporal modulation instability. Sidebands ranging from the visible to the near-infrared are carried by one and the s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaf01a15b81290e30dee2a6ccbc73d66
https://hal.archives-ouvertes.fr/hal-01388772
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