Zobrazeno 1 - 10
of 377
pro vyhledávání: '"J C, Kieffer"'
Autor:
J. Powell, S. Payeur, S. Fourmaux, S. Vallières, P. Lassonde, H. Ibrahim, J. C. Kieffer, S. MacLean, F. Légaré
Publikováno v:
The International Conference on Ultrafast Phenomena (UP) 2022.
We report on the generation of electron beams exceeding 100 keV by direct laser acceleration in a low-density gas using longitudinal electric fields. The scaling of electron energy with increasing pulse energy is discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaeba4a13f5196c47dd35621b1805b57
https://doi.org/10.1364/up.2022.th2b.7
https://doi.org/10.1364/up.2022.th2b.7
Autor:
G. Sharma, L. Razzari, F. H. Su, F. Blanchard, A. Ayesheshim, T. L. Cocker, L. V. Titova, H. C. Bandulet, T. Ozaki, J.-C. Kieffer, R. Morandotti, M. Reid, F. A. Hegmann
Publikováno v:
IEEE Photonics Journal, Vol 2, Iss 4, Pp 578-592 (2010)
Nonlinear dynamics of free carriers in direct bandgap semiconductors at terahertz (THz) frequencies is studied using the intense few-cycle source available at the Advanced Laser Light Source (ALLS). Techniques such as Z-scan and optical-pump/THz-prob
Externí odkaz:
https://doaj.org/article/c0f0f7fb2fe8414fbdd7d59f7e64142b
Autor:
S. Fourmaux, P. Lassonde, S. Yu. Mironov, E. Hallin, F. Légaré, S. Maclean, E. A. Khazanov, G. Mourou, J. C. Kieffer
Publikováno v:
Optics Letters. 47:3163
We show that 13-fs laser pulses associated with 225 TW of peak power can be used to produce laser wakefield acceleration (LWFA) and generate synchrotron radiation. To achieve this, 130-TW high-power laser pulses (3.2 J, 24 fs) are efficiently compres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::017e7e24931d6d706512e3e712d621dd
https://doi.org/10.1364/ol.459199
https://doi.org/10.1364/ol.459199
Publikováno v:
Applied Physics B. 125
X-ray computed tomography of plants requires a high number of X-ray photons, good source stability, and a large field of view. We show that we can optimize a laser-based synchrotron X-ray source for this application. The X-ray beam is produced during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7da20a8a1d8c9571d246f8a50afea142
https://doi.org/10.1007/s00340-019-7144-9
https://doi.org/10.1007/s00340-019-7144-9
Autor:
J. C. Kieffer, Emil Hallin, Sylvain Fourmaux, Marc Châteauneuf, Francis Théberge, Philippe Lassonde
Publikováno v:
20th International Conference and School on Quantum Electronics: Laser Physics and Applications.
Compact optical sources of radiation with high average power are needed for many applications from sensing to imaging and spectroscopy. The control of non-linear effects during the propagation of intense ultra-short laser pulses in various gas allows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2347a6699ff7877886d17606868c0504
https://doi.org/10.1117/12.2515880
https://doi.org/10.1117/12.2515880
Publikováno v:
Advances in X-Ray/EUV Optics and Components XIII.
We describe our system for generating intense beams of hard X-rays optimized for high throughput phase contrast plant imaging and rapid identification of phenotype in a plant production setting. High peak and average power X-ray beams are generated i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93c94f94d47797be97993d62730d6685
https://doi.org/10.1117/12.2319887
https://doi.org/10.1117/12.2319887
Autor:
Elisabetta Boella, D. S. Andrews, Vladimir Tikhonchuk, M. Glesser, Luis O. Silva, Fabio Cardelli, Patrizio Antici, J. C. Kieffer, Philippe Nicolai, H. Pépin, Marianna Barberio, Sophia Chen, J. Böker, Julien Fuchs, M. V. Starodubtsev, L. Romagnani, M. Scisciò, Oswald Willi, E. D 'humières, Jean-Luc Feugeas
Publikováno v:
Scientific Reports
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
A new type of proton acceleration stemming from large-scale gradients, low-density targets, irradiated by an intense near-infrared laser is observed. The produced protons are characterized by high-energies (with a broad spectrum), are emitted in a ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55f505b0d935eb538626eaf5638c0385
https://doi.org/10.1038/s41598-017-15449-8
https://doi.org/10.1038/s41598-017-15449-8
Autor:
Frederic E. Pitre, M. Dixon, Nicholas J. B. Brereton, Sylvain Fourmaux, Paul G. Arnison, J. C. Kieffer, Emil Hallin, N. Tran
Publikováno v:
SPIE Proceedings.
We present the development of a high throughput phase contrast screening system based on LWFA Xray sources for plant imaging. We upgraded the INRS laser-betatron beam line and we illustrate its imaging potential through the innovative development of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09568da2fe39cc0d97206dc8d00ce322
https://doi.org/10.1117/12.2263951
https://doi.org/10.1117/12.2263951
Autor:
P, Antici, E, Boella, S N, Chen, D S, Andrews, M, Barberio, J, Böker, F, Cardelli, J L, Feugeas, M, Glesser, P, Nicolaï, L, Romagnani, M, Scisciò, M, Starodubtsev, O, Willi, J C, Kieffer, V, Tikhonchuk, H, Pépin, L O, Silva, E d', Humières, J, Fuchs
Publikováno v:
Scientific Reports
A new type of proton acceleration stemming from large-scale gradients, low-density targets, irradiated by an intense near-infrared laser is observed. The produced protons are characterized by high-energies (with a broad spectrum), are emitted in a ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::517d9571e264b54548f227dcfff264d9
https://pubmed.ncbi.nlm.nih.gov/29184108
https://pubmed.ncbi.nlm.nih.gov/29184108
Publikováno v:
Proceedings of SPIE
19th International Conference and School on Quantum Electronics
19th International Conference and School on Quantum Electronics, Alexandros Serafetinides; Sanka Gateva; Latchevar Avromov, Sep 2016, Sozopol, Bulgaria. pp.1022612-1, ⟨10.1117/12.2261795⟩
19th International Conference and School on Quantum Electronics
19th International Conference and School on Quantum Electronics, Alexandros Serafetinides; Sanka Gateva; Latchevar Avromov, Sep 2016, Sozopol, Bulgaria. pp.1022612-1, ⟨10.1117/12.2261795⟩
International audience; This paper reviews recent progresses in ultrafast laser-based X-ray sources and their potential applications to high throughput X-ray imaging. Prospects for the utilization of X-rays sources related to the Laser Wakefield elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9023dc75fecfaa486d9f630cc122ead
https://hal.archives-ouvertes.fr/hal-01441646/file/Kieffer_ICSQE_2016.pdf
https://hal.archives-ouvertes.fr/hal-01441646/file/Kieffer_ICSQE_2016.pdf
