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Artykuły w czasopismach na temat "Intensité relativiste"
Jiménez-Rosales, A., J. Dexter, S. M. Ressler, A. Tchekhovskoy, M. Bauböck, Y. Dallilar, P. T. de Zeeuw i in. "Relative depolarization of the black hole photon ring in GRMHD models of Sgr A* and M87*". Monthly Notices of the Royal Astronomical Society 503, nr 3 (22.03.2021): 4563–75. http://dx.doi.org/10.1093/mnras/stab784.
Pełny tekst źródłaLavenda, B. H. "Is Relativistic Quantum Mechanics Compatible with Special Relativity?" Zeitschrift für Naturforschung A 56, nr 5 (1.05.2001): 347–65. http://dx.doi.org/10.1515/zna-2001-0503.
Pełny tekst źródłaКлименко, Владимир, i Vladimir Klimenko. "Sky-distribution of intensity of synchrotron radio emission of relativistic electrons trapped in Earth’s magnetic field". Solar-Terrestrial Physics 3, nr 4 (29.12.2017): 32–43. http://dx.doi.org/10.12737/stp-34201704.
Pełny tekst źródłaChang, Yifan, Chang Wang, Yubo Wang, Zhaonan Long, Zirui Zeng i Youwei Tian. "Collimation and monochromaticity of γ-rays generated by high-energy electron colliding with tightly focused circularly polarized laser with varied intensities". Laser Physics Letters 19, nr 6 (20.04.2022): 065301. http://dx.doi.org/10.1088/1612-202x/ac6614.
Pełny tekst źródłaLiesfeld, Ben, Jens Bernhardt, Kay-Uwe Amthor, Heinrich Schwoerer i Roland Sauerbrey. "Single-shot autocorrelation at relativistic intensity". Applied Physics Letters 86, nr 16 (18.04.2005): 161107. http://dx.doi.org/10.1063/1.1905779.
Pełny tekst źródłaFriou, A., E. Lefebvre i L. Gremillet. "Channeling dynamics of relativistic-intensity laser pulses". Physics of Plasmas 19, nr 2 (luty 2012): 022704. http://dx.doi.org/10.1063/1.3680613.
Pełny tekst źródłaLee, P. H. Y. "On relativistic self focusing". Laser and Particle Beams 5, nr 1 (luty 1987): 15–25. http://dx.doi.org/10.1017/s0263034600002457.
Pełny tekst źródłaSoldateschi, J., N. Bucciantini i L. Del Zanna. "Axisymmetric equilibrium models for magnetised neutron stars in scalar-tensor theories". Astronomy & Astrophysics 640 (sierpień 2020): A44. http://dx.doi.org/10.1051/0004-6361/202037918.
Pełny tekst źródłaBucciantini, Niccolò, i Jacopo Soldateschi. "Iron line from neutron star accretion discs in scalar tensor theories". Monthly Notices of the Royal Astronomical Society: Letters 495, nr 1 (7.04.2020): L56—L60. http://dx.doi.org/10.1093/mnrasl/slaa059.
Pełny tekst źródłaOSMAN, FREDERICK, REYNALDO CASTILLO i HEINRICH HORA. "Relativistic and ponderomotive self-focusing at laser–plasma interaction". Journal of Plasma Physics 61, nr 2 (luty 1999): 263–73. http://dx.doi.org/10.1017/s0022377898007417.
Pełny tekst źródłaRozprawy doktorskie na temat "Intensité relativiste"
Ouillé, Marie. "Génération d'impulsions laser proches du cycle optique en durée pour l'interaction laser-matière relativiste à haute cadence". Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAE007.
Pełny tekst źródłaThis experimental thesis was essentially conducted at Laboratoire d’Optique Appliquée in Palaiseau (France), on a laser system capable of delivering near-single-cycle duration pulses containing a few mJ of energy at 1kHz repetition rate: the Salle Noire 2. This laser is a Titanium:Sapphire double CPA system with a nonlinear filter in between (based on the crossed polarized wave generation effect) for temporal contrast enhancement, followed by a stretched-flexible hollow-core-fiber based post-compression stage. Using this system, we study laser-matter interaction in the relativistic regime at high repetition rate. We can, on one hand, in gas jets, accelerate electrons in the wakefield of the laser up to several MeVs; and on the other hand, by interacting with plasma mirrors, generate high order harmonics which are associated to bright attosecond pulses in the time domain. Despite the technological prowess in these experiments, the properties of the XUV and electron beams thus generated remain scarcely compatible with the main applications downstream. Following up on previous works in Salle Noire 2, the objective of this thesis was to obtain beams with stable properties, which was achieved by making the laser system more stable and reliable, as well as implementing a fast carrier-envelope phase control loop. By varying the carrier-envelope phase of the laser pulses, we could generate XUV continua/isolated attosecond pulses by forming a relativistic-intensity temporal gate at the surface of the plasma mirror, and also produce electron beams exhibiting stable energy and angle of emission, by controlling the electron injection within the plasma accelerator. Additionally, different regimes of interaction with plasma mirrors were experimentally investigated, such as wakefield acceleration of electrons in long plasma density gradients, and the acceleration of protons on the target’s front side (onto which the laser impinges) along the target no rmal direction, in order to measure new observables (electron energy spectra, proton beam divergence) and thus gain deeper insights into the laser-plasma dynamics
Leblanc, Adrien. "Miroirs et réseaux plasmas en champs lasers ultra-intenses : génération d’harmoniques d’ordre élevé et de faisceaux d’électrons relativistes". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS384/document.
Pełny tekst źródłaWhen focusing an ultra-intense femtosecond laser pulse [I>10¹⁶W/cm²] onto a solid target, this target is ionized at the very beginning of the laser pulse. The resulting dense plasma then reflects the laser in the specular direction: it is a plasma mirror. The ultra-intense laser field can accelerate electrons within the plasma at relativistic speeds. Some are ejected towards the vacuum and these plasma mirrors are therefore sources of relativistic electron beams. Moreover, at each optical cycle they radiate in the form of extreme ultraviolet light, resulting in the generation of high-order harmonics of the laser frequency (HHG). The objective of this PhD is to understand laser-plasma interaction though the characterization of high-order harmonics and relativistic electron beams generated from plasma mirrors. The first part deals with harmonic beam measurement. Due to the extreme physical conditions during the interaction, detection can only be performed at macroscopic distance from target. Thus, the characterization of the harmonic beams’ angular properties (carried out as a function of interaction conditions in previous works) only provides partial information on the interaction itself. A technique of coherent diffraction imaging, named ptychography, which consists of diffracting a probe onto an object, is transposed to HHG on plasma mirrors by optically micro-structuring the plasma on a target surface. Harmonic fields are then reconstructed spatially in amplitude and phase directly in the target plane. Thanks to this measurement in different interaction conditions, previously developed theoretical analytical models in non-relativistic regime [I<10¹⁸W/cm²] and relativistic regime [I>10¹⁸W/cm²] are experimentally validated. The second part of the PhD is dedicated to the experimental characterization of angular and spectral properties of relativistic electron beams. A theoretical and numerical study shows that this constitutes the first clear observation of vacuum laser acceleration (VLA). Finally, a simultaneous study of harmonic and electron signals highlights a strong correlation between both processes in the relativistic regime
Chopineau, Ludovic. "Physique attoseconde relativiste sur miroirs plasmas". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS132/document.
Pełny tekst źródłaWhen an ultra-intense femtosecond laser beam [Iʟ > 10¹⁶ W/cm²] is focused on a solid target, the surface becomes completely ionized during the first optical cycles of the laser pulse. Due to their solid-like density and to their limited expansion into the vacuum such plasmas specularly reflect these pulses, just like ordinary mirrors do for low intensity. These plasmas are now used in many scientific applications like particle acceleration by laser light as well as high-order harmonic generation, associated to a train of attosecond pulses in the time domain. Nevertheless, to favor these emissions of light or particle, the energy transfert between the incident field and the dense plasma is crucial. The aim of this thesis is to better understand these interactions through the characterization of high-order harmonics and relativistic electron beams generated on plasma mirrors. We reported in this manuscript the first detailed experimental and numerical study of the coupling mechanisms involved between an ultra-intense laser light [Iʟ > 10¹⁸ W/cm²] and a dense plasma, and more specifically as a function of the gradient scale length Lg. These results enabled to identify two different regimes, clarifying some physical issues. Furthermore, beyond these fondamental aspects, the control of these sources is essential, particularly for futures pump-probe experiments or new spectroscopies. For that, several approaches have been studied to temporally and spatially shape these ultra-short light pulses, thus opening up new perspectives for these sources. We demonstrate in particular the generation of intense XUV vortex beam either by spatially shaping the incident IR field or the dense plasma created at the target surface as well as controlling the electron dynamics on the attosecond time scale with relativistic two-color waveforms. Finally, an innovative method based on in-situ ptychographic measurements has been developed to simultaneously characterize in time and space these ultrashort XUV light pulses, constituting one of the major challenges of the community
Kiefer, Daniel. "Relativistic electron mirrors from high intensity laser nanofoil interactions". Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-153796.
Pełny tekst źródłaKjellsson, Lindblom Tor. "Relativistic light-matter interaction". Doctoral thesis, Stockholms universitet, Fysikum, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-147749.
Pełny tekst źródłaKiefer, Daniel [Verfasser], i Jörg [Akademischer Betreuer] Schreiber. "Relativistic electron mirrors from high intensity laser nanofoil interactions / Daniel Kiefer. Betreuer: Jörg Schreiber". München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2012. http://d-nb.info/1032131314/34.
Pełny tekst źródłaZaim, Neïl. "Modeling electron acceleration driven by relativistic intensity few-cycle laser pulses on overdense plasmas". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX089.
Pełny tekst źródłaThis theoretical and numerical thesis is devoted to electron acceleration from the interaction between a relativistic intensity laser pulse and an overdense plasma. This interaction is very sensitive to the density profile at the plasma front surface and two different regimes, which correspond to two distinct lines of research investigated in this thesis, can be considered.First, for sharp plasma-vacuum interfaces, the mechanisms responsible for electron emission are well understood. The electrons receive in particular a large energy gain from their interaction in vacuum with the reflected laser. We propose to optimize the acceleration by using radially polarized beams, which exhibit a strong longitudinal electric field that can directly accelerate electrons in the laser propagation direction. We show that overdense plasmas lead to more efficient acceleration than other existing methods for injecting electrons into a radially polarized pulse. This result was confirmed by recent experiments performed at CEA Saclay, in which electron acceleration in the longitudinal direction, leading to a decrease in the electron beam angular spread, is demonstrated.Secondly, for larger plasma gradient scale lengths, the interaction is not as well understood. We analyze recent experiments performed in this regime at LOA with few-cycle pulses and find that electrons are accelerated by a laser wakefield formed in the near-critical part of the plasma. This process can only be driven by few-cycle pulses, by virtue of the resonant condition, and is characterized by the rotation of the plasma waves induced by the density gradient
Debayle, Arnaud. "Theoretical study of Ultra High Intensity laser-produced high-current relativistic electron beam transport through solid targets". Thesis, Bordeaux 1, 2008. http://www.theses.fr/2008BOR13708/document.
Pełny tekst źródłaThis PhD thesis is a theoretical study of high-current relativistic electron beam transport through solid targets. In the ?rst part, we present an interpretation of a part of experimental results of laser– produced electron beam transport in aluminium foil targets. We have estimated the fast electron beam characteristics and we demonstrated that the collective e?ects dominate the transport in the ?rst tens of µm of propagation. These quantitative estimates were done with the transport models already existing at the beginning of this thesis. These models are no longer su?cient in the case a fast electron beam propagation in insulator targets. Thus, in the second part, we have developed a propagation model of the beam that includes the e?ects of electric ?eld ionization and the collisional ionization by the plasma electrons. We present estimates of the electron energy loss induced by the target ionization, and we discuss its dependence on the beam and target parameters. In the case of a relatively low fast electron density, we demonstrated that the beam creates a plasma where the electons are not in a local thermodynamic equilibrium with ions. We have examined the beam stability and we demonstrated that transverse instabilities can be excited by the relativistic electron beam over the propagation distances of 30 - 300 µm depending on the perturbation wavelength
Coury, Mireille. "Generation and transport of high-current relativistic electron beams in high intensity laser-solid interactions". Thesis, University of Strathclyde, 2013. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=20410.
Pełny tekst źródłaWilz, Mackenzie Charles. "Focused investigations of relativistic electron burst intensity, range, and dynamics space weather mission global positioning system". Montana State University, 2011. http://etd.lib.montana.edu/etd/2011/wilz/WilzM0511.pdf.
Pełny tekst źródłaKsiążki na temat "Intensité relativiste"
Kostyukov, Viktor. Theory of quantum chemistry. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1090584.
Pełny tekst źródłaKiefer, Daniel. Relativistic Electron Mirrors: From High Intensity Laser–Nanofoil Interactions. Springer, 2014.
Znajdź pełny tekst źródłaKiefer, Daniel. Relativistic Electron Mirrors: From High Intensity Laser–Nanofoil Interactions. Springer, 2016.
Znajdź pełny tekst źródłaKiefer, Daniel. Relativistic Electron Mirrors: From High Intensity Laser-Nanofoil Interactions. Springer, 2014.
Znajdź pełny tekst źródłaCzęści książek na temat "Intensité relativiste"
Wang, H., O. Albere, J. Nees, D. Liu, G. Mourou i Z. Chang. "Generation of Relativistic Intensity Pulses at 300-Hz Repetition Rate". W Ultrafast Phenomena XII, 93–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-56546-5_25.
Pełny tekst źródłaPirozhkov, Alexander S., Sergei V. Bulanov, Timur Zh Esirkepov, Akito Sagisaka, Toshiki Tajima i Hiroyuki Daido. "Intensity Scalings of Attosecond Pulse Generation by the Relativistic-irradiance Laser Pulses". W Springer Series in Optical Sciences, 265–72. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-49119-6_35.
Pełny tekst źródłaBowes, B. T., M. C. Downer, H. Langhoff, M. Wilcox, B. Hou, J. Nees i G. Mourou. "Ultrafast radial transport in a micron-scale aluminum plasma excited at relativistic intensity". W Springer Series in Chemical Physics, 334–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-27213-5_103.
Pełny tekst źródłaRodionov, V. N. "Non-Hermitian $$\mathcal{PT}$$ PT -Symmetric Relativistic Quantum Theory in an Intensive Magnetic Field". W Springer Proceedings in Physics, 357–69. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31356-6_24.
Pełny tekst źródłaMetral, E., G. Rumolo i W. Herr. "Impedance and Collective Effects". W Particle Physics Reference Library, 105–81. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-34245-6_4.
Pełny tekst źródłaSagisaka, A., H. Daido, K. Ogura, S. Orimo, Y. Hayashi, M. Nishiuchi, M. Mori i in. "Observation of Thin Foil Preformed Plasmas with a Relativistic-intensity Ultra-short Pulse Laser by Means of Two-color Interferometer". W Springer Series in Optical Sciences, 273–77. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-49119-6_36.
Pełny tekst źródłaAlcaraz-Muñoz, Verónica, María Isabel Cifo Izquierdo i José I. Alonso Roque. "When Playing Is Not About the Physical Sporting Experience". W Advances in Early Childhood and K-12 Education, 134–57. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-9621-0.ch008.
Pełny tekst źródłaDyall, Kenneth G., i Knut Faegri. "Introduction". W Introduction to Relativistic Quantum Chemistry. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195140866.003.0005.
Pełny tekst źródłaSuprun, Sergey P., Anatoly P. Suprun i Victor F. Petrenko. "An Object-Based Model in Physics". W Algorithms for Construction of Reality in Physics, 54–75. BENTHAM SCIENCE PUBLISHERS, 2022. http://dx.doi.org/10.2174/9789815049664122020007.
Pełny tekst źródłaStewart, Ian. "6. Physical infinity". W Infinity: A Very Short Introduction, 91–102. Oxford University Press, 2017. http://dx.doi.org/10.1093/actrade/9780198755234.003.0007.
Pełny tekst źródłaStreszczenia konferencji na temat "Intensité relativiste"
Bardsley, J. N., i B. M. Penetrante. "Creation of relativistic plasmas using ultra-high-intensity laser radiation". W Short Wavelength Coherent Radiation: Generation and Applications. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/swcr.1991.tub1.
Pełny tekst źródłaMeyerhofer, D. D., C. I. Moore i J. P. Knauer. "Forward Ponderomotive Acceleration of Electrons from the Focus of a High-Intensity Laser". W High Resolution Fourier Transform Spectroscopy. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/hrfts.1994.tub2.
Pełny tekst źródłaLachapelle, Amélie, Kazuto Otani, Sylvain Fourmaux, Stéphane Payeur, Steve Maclean, Michel Piché i Jean-Claude Kieffer. "Direct Laser Field Electron Acceleration in Relativistic Regime". W High Intensity Lasers and High Field Phenomena. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/hilas.2016.hm6b.2.
Pełny tekst źródłaOuillé, Marie, Frederik Boehle, Maxence Thévenet, Maimouna Bocoum, Aline Vernier, Magali Lozano, Jean-Philippe Rousseau i in. "Relativistic-Intensity Near-Single-Cycle KHz Laser Driver". W High Intensity Lasers and High Field Phenomena. Washington, D.C.: OSA, 2018. http://dx.doi.org/10.1364/hilas.2018.ht2a.3.
Pełny tekst źródłaEkanayake, Nagitha, Sui Luo, Patrick Grugan, Willow Crosby, Arielle Camilo, Caitlin McCowan, Rosie Scalzi i in. "Electron Shell Ionization of Atoms with Classical, Relativistic Scattering". W High Intensity Lasers and High Field Phenomena. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/hilas.2014.hth3b.4.
Pełny tekst źródłaTsaur, Gin-yih. "Relativistic birefringence induced by high-intensity laser field in plasma". W High Intensity Lasers and High Field Phenomena. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/hilas.2011.hwc17.
Pełny tekst źródłaChang Hee Nam, I. Jong Kim, Hyung Taek Kim, Ki Hong Pae, Il Woo Choi, Chul Min Kim, Seong Ku Lee, Jae Hee Sung i Tae Moon Jeong. "Laser particle acceleration at relativistic laser intensity". W 2014 International Conference Laser Optics. IEEE, 2014. http://dx.doi.org/10.1109/lo.2014.6886329.
Pełny tekst źródłaWang, H., O. Albert, D. Liu, G. Mourou i Z. Chang. "Generation of Relativistic Intensity Pulses at kHz". W International Conference on Ultrafast Phenomena. Washington, D.C.: OSA, 2000. http://dx.doi.org/10.1364/up.2000.mf14.
Pełny tekst źródłaArefiev, Alexey, Matthew McCormick, Hernan Quevedo, Roger Bengtson i Todd Ditmire. "Observation of Self-Sustaining Relativistic Ionization Wave Launched by Sheath Field". W High Intensity Lasers and High Field Phenomena. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/hilas.2014.hth3b.6.
Pełny tekst źródłaVeisz, Laszlo, Daniel Cardenas, Laura Di Lucchio, Tobias Ostermayr, Luisa Hofmann, Matthias Kling, Jörg Schreiber i Paul Gibbon. "Sub-5-fs laser-driven nanophotonics in the relativistic intensity regime". W High Intensity Lasers and High Field Phenomena. Washington, D.C.: OSA, 2018. http://dx.doi.org/10.1364/hilas.2018.ht2a.1.
Pełny tekst źródłaRaporty organizacyjne na temat "Intensité relativiste"
I.Y. Dodin, N.J. Fisch i G.M. Fraiman. Lagrangian Formulation of Relativistic Particle Average Motion in a Laser Field of Arbitrary Intensity. Office of Scientific and Technical Information (OSTI), luty 2003. http://dx.doi.org/10.2172/811961.
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