Letteratura scientifica selezionata sul tema "Relativist plasma"
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Articoli di riviste sul tema "Relativist plasma":
MELROSE, D. B., M. E. GEDALIN, M. P. KENNETT e C. S. FLETCHER. "Dispersion in an intrinsically relativistic, one-dimensional, strongly magnetized pair plasma". Journal of Plasma Physics 62, n. 2 (agosto 1999): 233–48. http://dx.doi.org/10.1017/s0022377899007795.
Shapakidze, David, e George Machabeli. "Plasma Theory of Two Synchrotron Knots’ formation Discovered in the Crab Nebula". International Astronomical Union Colloquium 177 (2000): 505–6. http://dx.doi.org/10.1017/s0252921100060425.
NAKASHIMA, Ken-ichi, e Thomas E. COWAN. "Relativistic Plasma Physics. Relativistic Electron-Positron Pair Plasmas." Journal of Plasma and Fusion Research 78, n. 6 (2002): 568–74. http://dx.doi.org/10.1585/jspf.78.568.
Siddique, M., M. Jamil, A. Rasheed, F. Areeb, Asif Javed e P. Sumera. "Impact of Relativistic Electron Beam on Hole Acoustic Instability in Quantum Semiconductor Plasmas". Zeitschrift für Naturforschung A 73, n. 2 (26 gennaio 2018): 135–41. http://dx.doi.org/10.1515/zna-2017-0275.
Chen, Hui, e Frederico Fiuza. "Perspectives on relativistic electron–positron pair plasma experiments of astrophysical relevance using high-power lasers". Physics of Plasmas 30, n. 2 (febbraio 2023): 020601. http://dx.doi.org/10.1063/5.0134819.
BINGHAM, R., R. A. CAIRNS e J. T. MENDONÇA. "Particle acceleration in plasmas by perpendicularly propagating waves". Journal of Plasma Physics 64, n. 4 (ottobre 2000): 481–87. http://dx.doi.org/10.1017/s0022377800008722.
BALIKHIN, M., e M. GEDALIN. "Generalization of the Harris current sheet model for non-relativistic, relativistic and pair plasmas". Journal of Plasma Physics 74, n. 6 (dicembre 2008): 749–63. http://dx.doi.org/10.1017/s002237780800723x.
Pietrini, P., e J. H. Krolik. "Do Fluid Waves Propagate in Mildly Relativistic Thermal Pair Plasmas?" Symposium - International Astronomical Union 159 (1994): 357. http://dx.doi.org/10.1017/s0074180900175552.
CHAUDHARY, ROZINA, NODAR L. TSINTSADZE e P. K. SHUKLA. "Nonlinear propagation of intense electromagnetic waves in a hot electron–positron plasma". Journal of Plasma Physics 76, n. 6 (17 agosto 2010): 875–86. http://dx.doi.org/10.1017/s0022377810000498.
MELROSE, D. B. "Generalized Trubnikov functions for unmagnetized plasmas". Journal of Plasma Physics 62, n. 2 (agosto 1999): 249–53. http://dx.doi.org/10.1017/s0022377899007898.
Tesi sul tema "Relativist plasma":
Oubrerie, Kosta. "Amélioration de l'efficacité des accélérateurs laser-plasma". Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAE002.
To generate high energy electron beams, conventional accelerators use radio frequency waves to accelerate charged particles to relativistic speeds. However, the accelerating electric field produced is limited to a few tens of megavolts per metre, mainly due to a breakdown phenomenon. Very large facilities are therefore needed to reach sufficiently high energies. For example, the Stanford Linear Accelerator (SLAC), which is the world's longest linear accelerator, accelerates electrons up to 50 GeV over a distance of 3.2 km. Laser-Plasma Accelerators can produce electric fields exceeding 100 GV/m, that are about three orders of magnitude larger than those obtained by radiofrequency-cavity accelerators. They could thus allow for a drastic decrease of the size of accelerators for scientific, medical and industrial applications. Yet, several bottlenecks have to be solved before these applications can be really implemented. It is notably necessary to demonstrate the efficient production of high-quality, multi-GeV electron beams at a high-repetition rate.The doctoral project tackles this problem by exploring new methods for increasing the energy of the electron beams thanks to techniques that are compatibles with arbitrarily high laser powers and repetition rates and that can be combined with controlled injection methods. Indeed, high energy or controlled injection electron beams have been obtained separately during the last fifteen years, but never combined. This thesis presents the work carried out on the guiding techniques as well as on the electron injection techniques which allowed to obtain experimentally good quality beams at high energies. This work was done in particular through the optimisation of a new optic designed at the Laboratoire d'Optique Appliquée, the axiparabola, as well as the development of gas jets specific to laser-plasma acceleration
Bocoum, Maïmouna. "Harmonic and electron generation from laser-driven plasma mirrors". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX023/document.
The experimental work presented in this manuscript focuses on the non-linear response of plasma mirrors when driven by a sub-relativistic (~10^18 W/cm^2) ultra-short (~30fs) laser pulse. In particular, we studied the generation of attosecond pulses (1as=10^(-18) s) and electron beams from plasma mirror generated in controlled pump-probe experiment. One first important result exposed in this manuscript is the experimental observation of the anticorrelated emission behavior between high-order harmonics and electron beams with respect to plasma scale length. The second important result is the presentation of the « spatial domain interferometry » (SDI) diagnostic, developed during this PhD to measure the plasma expansion in vacuum. Finally, we will discuss the implementation of phase retrieval algorithms for both spatial and temporal phase reconstructions.From a more general point of view, we replace this PhD in its historical context. We hope to convince the reader that through laser-plasma mirror interaction schemes, we could tomorrow conceive cost-efficient X-UV and energetic electron sources with unprecedented temporal resolutions
Mollica, Florian. "Interaction laser-plasma ultra-intense à densité proche-critique pour l'accélération d'ions". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX058/document.
Interaction of ultra-intense, ultra-short laser with matter gives rise to a wealth of phenomena, due to the coupling between the electromagnetic field and the plasma. The non-linear coupling excites collective plasma processes able to sustain intense electric fields up to 1TV/m. This property spurred early interest in laser accelerator as compact, next-generation source of accelerated electrons and ions. Laser-driven ion source of several MeV was demonstrated in early 2000 an various mechanisms had been suggest to improve the their properties. These first ion sources have been obtained on solid targets, called “overdense”. Target innovation has driven the improvement of these sources. In the continuity of this dynamic, new gaseous targets had been proposed in order to relax the constraints that solid targets impose on laser contrast and repetition rate. Recent experimental demonstrations of monoenergetic ion acceleration in gas renew the interest in such targets, called under-dense or near-critical because of their intermediate densities. At near-critical density the laser can propagate, but undergoes significant absorbtion, giving rise to the accelerating structures of plasma shocks and magnetic vortex.The work presented in this thesis is an experimental exploration of the plasma conditions required to drive ion acceleration in gaseous near-critical target. For the first time, these regimes are explored with an ultra-intense, femtosecond laser of 150TW. A part of this work has been dedicated to the design of an innovative gas target, suited for plasma density and gradient constraints set by these regimes. Then the experimental works describe laser propagation and electron acceleration in near-critical targets. Finally the last part report the efficient production of an atomic beam from a laser-driven ion source
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.
When 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
Keston, David Arthur. "Bernstein modes in weakly relativistic e'-e'+ plasma". Thesis, University of Glasgow, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264260.
Déchard, Jérémy. "Sources térahertz produites par des impulsions laser ultra-intenses". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS358/document.
Femtosecond laser pulses trigger extreme nonlinear events inmatter, leading to intense secondary radiations spanning the frequency rangesfrom terahertz (THz) to X and gamma-rays.This work is dedicated to the theoretical and numerical study of THz radiationgenerated by laser-driven plasmas. Despite the inherent difficulty in accessingthe THz spectral window (0.1-100 THz), many coming applications use theability of THz frequencies to probe matter (spectroscopy, medicine, materialscience). Laser-driven THz sources appear well-suited to provide simultaneouslyan energetic and broadband signal compared to other conventional devices. Ourgoal is to investigate previously little explored interaction regimes in orderto optimize the laser-to-THz conversion efficiency.Starting from classical interactions in gases, we validate a unidirectionalpropagation model accounting for THz pulse generation, which we compare to theexact solution of Maxwell's equations. We next increase the laser intensityabove the relativistic threshold in order to trigger a nonlinear plasma wave inthe laser wake, accelerating electrons to a few hundreds of MeV. We show thatthe standard photocurrent mechanisms is overtaken by coherent transitionradiation induced by wakefield-accelerated electron bunch. Next, successivestudies reveal the robustness of this latter process over a wide range of plasmaparameters. We also demonstrate the relevance of long laser wavelengths inaugmenting THz pulse generation through the ionization-induced pressure thatincreases the laser ponderomotive force. Finally, THz emission from laser-solidinteraction is examined in the context of ultra-thin targets, shedding light onthe different processes involved
Touati, Michaël. "Fast Electron Transport Study for Inertial Confinement Fusion". Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0076/document.
A new hybrid reduced model for relativistic electron beam transport in solids and dense plasmas is presented. It is based on the two first angular moments of the relativistic kinetic equation completed with the Minerbo maximum angular entropy closure. It takes into account collective effects with the self-generated electromagnetic fields as well as collisional effects with the slowing down of the elec- trons in collisions with plasmons, bound and free electrons and their angular scattering on both ions and electrons. This model allows for fast computations of relativistic electron beam transport while describing the kinetic distribution function evolution. Despite the loss of information concerning the angular distribution of the electron beam, the model reproduces analytical estimates in the academic case of a collimated and monoenergetic electron beam propagating through a warm and dense Hydro- gen plasma and hybrid PIC simulation results in a realistic laser-generated electron beam transport in a solid target. The model is applied to the study of the emission of Kα photons in laser-solid experiments and to the generation of shock waves
Heissler, Patrick. "Relativistic laser plasma interaction". Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-146019.
MARQUES, JEAN-RAPHAEL. "Creation de plasmas homogenes pour l'excitation d'ondes plasma relativistes par battement d'ondes laser". Paris 11, 1992. http://www.theses.fr/1992PA112260.
Appel, Walter. "Proprietes d'equilibre d'un plasma faiblement relativiste". Lyon, École normale supérieure (sciences), 1997. http://www.theses.fr/1997ENSL0051.
Libri sul tema "Relativist plasma":
V, Stefan, e Institute for Advanced Physics Studies. La Jolla International School of Physics., a cura di. Nonlinear and relativistic effects in plasmas. New York: American Institute of Physics, 1992.
International Symposium on Laser-Driven Relativistic Plasmas Applied to Science, Industry and Medicine (2nd 2009 Kyoto, Japan). Laser-driven relativistic plasmas applied to science, industry, and medicine: The 2nd international symposium, Kyoto, Japan, 19-23 January 2009. A cura di Bolton Paul R, Bulanov, S. V. (Sergei V.) e Daido H. (Hiroyuki). Melville, N.Y: American Institute of Physics, 2009.
International, Symposium "Laser-Driven Relativistic Plasmas Applied to Science Energy Industry and Medicine" (3rd 2011 Kyoto Japan). Laser-driven relativistic plasmas applied to science, energy, industry and medicine: The 3rd International Symposium, Kyoto, Japan, 30 May-2 June 2011. Melville, N.Y: American Institute of Physics, 2012.
Monnai, Akihiko. Relativistic Dissipative Hydrodynamic Description of the Quark-Gluon Plasma. Tokyo: Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-54798-3.
Krasovit︠s︡kiĭ, V. B. Instabilities of relativistic electron beams in plasmas. Hauppauge, N.Y: Nova Science Publishers, 2006.
Anile, Angelo Marcello. Relativistic fluids and magneto-fluids: With applications in astrophysics and plasma physics. Cambridge: Cambridge University Press, 1989.
Krasovit︠s︡kiĭ, V. B. Self-focusing of relativistic electron bunches in plasmas. Hauppauge, N.Y: Nova Science Publishers, 2006.
Entrop, Ingeborg. Confinement of relativistic runaway electrons in tokamak plasmas. Eindhoven: University of Eindhoven, 1999.
Bindslev, Henrik. On the theory of Thomson scattering and reflectometry in a relativistic magnetized plasma. Roskilde: Risø National Laboratory, 1992.
Wells, Nikita. Soviet research on the transport of intense relativistic electron beams through high-pressure air. Santa Monica, CA: Rand, 1987.
Capitoli di libri sul tema "Relativist plasma":
Punsly, Brian. "Relativistic Plasma Physics". In Astrophysics and Space Science Library, 34–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-76957-6_2.
Punsly, Brian. "Relativistic Plasma Physics". In Astronomy and Astrophysics Library, 35–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-04409-4_2.
Weitzner, Harold. "Relativistic plasmas". In Relativistic Fluid Dynamics, 211–37. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/bfb0084031.
Andreev, Alexander. "Relativistic Nano-Plasma Photonics". In Springer Series in Chemical Physics, 3–13. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52431-3_1.
Meyer-ter-Vehn, J., A. Pukhov e Zh M. Sheng. "Relativistic Laser Plasma Interaction". In Atoms, Solids, and Plasmas in Super-Intense Laser Fields, 167–92. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1351-3_9.
Mulser, Peter, e Dieter Bauer. "Relativistic Laser–Plasma Interaction". In Springer Tracts in Modern Physics, 331–403. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-46065-7_8.
Takabe, Hideaki. "Relativistic Laser Plasma Interactions". In Springer Series in Plasma Science and Technology, 203–38. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49613-5_6.
Pukhov, Alexander. "Relativistic Laser-Plasma Physics". In Strong Field Laser Physics, 427–53. New York, NY: Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-34755-4_18.
Kono, Mitsuo, e Miloš M. Škorić. "Relativistic Laser Plasma Interactions". In Nonlinear Physics of Plasmas, 415–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14694-7_13.
Shivamoggi, Bhimsen K. "Nonlinear Relativistic Waves". In Introduction to Nonlinear Fluid-Plasma Waves, 147–69. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2772-8_6.
Atti di convegni sul tema "Relativist plasma":
Esarey, E., P. Sprangle, J. Krall e G. Joyce. "Intense Laser Pulse Propagation and Wakefield Generation in Plasma". In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 1992. http://dx.doi.org/10.1364/up.1992.tua4.
Borisov, A. B., O. B. Shiryaev, A. McPherson, K. Boyer, C. K. Rhodes e J. C. Solem. "Stability Analysis of Relativistic and Charge-Displacement Self-Channeling of Intense Laser Pulses". In Shortwavelength V: Physics with Intense Laser Pulses. Washington, D.C.: Optica Publishing Group, 1993. http://dx.doi.org/10.1364/swv.1993.puip58.
Zhang, Chaojie, Warren B. Mori e Chan Joshi. "Femtosecond breathing of plasma wakes in a modulated density downramp". In Nonlinear Optics. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/nlo.2023.w1b.3.
Thompson, B. D., A. McPherson, A. B. Borisov, K. Boyer e C. K. Rhodes. "Experimental Studies of the Propagation of Ultrashort, Intense Laser Pulses in Underdense Plasmas". In Applications of High Field and Short Wavelength Sources. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/hfsw.1997.thb1.
Romé, M., I. Kotelnikov, R. Pozzoli, James R. Danielson e Thomas Sunn Pedersen. "Relativistic Effects on the Radial Equilibrium of Nonneutral Plasmas". In NON-NEUTRAL PLASMA PHYSICS VII: Workshop on Non-Neutral Plasmas 2008. AIP, 2009. http://dx.doi.org/10.1063/1.3122276.
Sprangle, P., E. Esarey e A. Ting. "The Interaction of Intense Laser Pulses in Plasmas". In High-Energy Density Physics with Subpicosecond Laser Pulses. Washington, D.C.: Optica Publishing Group, 1989. http://dx.doi.org/10.1364/hpslp.1989.m3.
Škorić, Miloš M., Bengt Eliasson e Padma K. Shukla. "Relativistic Laser-Plasma Interactions". In NEW DEVELOPMENTS IN NONLINEAR PLASMA PHYSICS: Proceedings of the 2009 ICTP Summer College on Plasma Physics and International Symposium on Cutting Edge Plasma Physics. AIP, 2009. http://dx.doi.org/10.1063/1.3266794.
Eliasson, B., P. K. Shukla, Padma K. Shukla, José Tito Mendonça, Bengt Eliasson e David Resedes. "Nonlinear relativistic interactions between electromagnetic waves and quantum plasmas". In INTERNATIONAL TOPICAL CONFERENCE ON PLASMA SCIENCE: Strongly Coupled Ultra-Cold and Quantum Plasmas. AIP, 2012. http://dx.doi.org/10.1063/1.3679596.
Škorić, M. M., Lj Nikolić, S. Ishiguro, Padma K. Shukla, José Tito Mendonça, Bengt Eliasson e David Resedes. "Attosecond photon and electron pulses from relativistic laser plasmas". In INTERNATIONAL TOPICAL CONFERENCE ON PLASMA SCIENCE: Strongly Coupled Ultra-Cold and Quantum Plasmas. AIP, 2012. http://dx.doi.org/10.1063/1.3679597.
Barchuk, S. V. "Relativistic Electron Beam Interaction With Semi-Bounded Plasma". In PLASMA 2005: Int. Conf. on Research and Applications of Plasmas; 3rd German-Polish Conf.on Plasma Diagnostics for Fusion and Applications; 5th French-Polish Seminar on Thermal Plasma in Space and Laboratory. AIP, 2006. http://dx.doi.org/10.1063/1.2168813.
Rapporti di organizzazioni sul tema "Relativist plasma":
Braams, B. J., e C. F. F. Karney. Conductivity of a relativistic plasma. Office of Scientific and Technical Information (OSTI), marzo 1989. http://dx.doi.org/10.2172/6392639.
Fernandez, Juan Carlos, Brian James Albright, Cris William Barnes e Kurt Francis Schoenberg. Harnessing Relativistic Laser Plasmas to Generate Intense Ion Beams: A Plasma Science Frontier White Paper. Office of Scientific and Technical Information (OSTI), giugno 2015. http://dx.doi.org/10.2172/1186051.
Govil, R., S. Wheeler e W. Leemans. Plasma lenses for focusing relativistic electron beams. Office of Scientific and Technical Information (OSTI), aprile 1997. http://dx.doi.org/10.2172/603710.
Shvets, G., N. J. Fisch e J. M. Rax. Relativistic Raman instability shifted by half-plasma frequency. Office of Scientific and Technical Information (OSTI), gennaio 1996. http://dx.doi.org/10.2172/206588.
Palastro, J., e T. Antonsen, Jr. Relativistic Plasma Physics at the National Ignition Facility. Office of Scientific and Technical Information (OSTI), dicembre 2012. http://dx.doi.org/10.2172/1059097.
Berezhiani, V. I., e S. M. Mahajan. A relativistic solitary wave in electron-positron ion plasma. Office of Scientific and Technical Information (OSTI), marzo 1994. http://dx.doi.org/10.2172/10140474.
Baym, Gordon. Ultra-Relativistic Heavy-Ion Collisions And The Quark-Gluon Plasma. Office of Scientific and Technical Information (OSTI), novembre 1986. http://dx.doi.org/10.2172/1118870.
Williams, J., Y. Arikawa, N. Lemos, T. Ma, D. Mariscal, A. Morace, Y. Sakawa et al. Relativistic electron-positron plasma jets and interactions using LFEX lasers. Office of Scientific and Technical Information (OSTI), marzo 2018. http://dx.doi.org/10.2172/1430999.
Braams, B. J., e C. F. F. Karney. Differential form of the collision integral for a relativistic plasma. Office of Scientific and Technical Information (OSTI), agosto 1987. http://dx.doi.org/10.2172/6268312.
Sprangle, P., A. Zigler e E. Esarey. Elimination of Laser Prepulse by Relativistic Guiding in a Plasma. Fort Belvoir, VA: Defense Technical Information Center, novembre 1990. http://dx.doi.org/10.21236/ada229859.