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Turnbull D, Franke P, Katz J, Palastro JP, Begishev IA, Boni R, Bromage J, Milder AL, Shaw JL, Froula DH. Ionization Waves of Arbitrary Velocity. PHYSICAL REVIEW LETTERS 2018; 120:225001. [PMID: 29906187 DOI: 10.1103/physrevlett.120.225001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/27/2018] [Indexed: 06/08/2023]
Abstract
Flying focus is a technique that uses a chirped laser beam focused by a highly chromatic lens to produce an extended focal region within which the peak laser intensity can propagate at any velocity. When that intensity is high enough to ionize a background gas, an ionization wave will track the intensity isosurface corresponding to the ionization threshold. We report on the demonstration of such ionization waves of arbitrary velocity. Subluminal and superluminal ionization fronts were produced that propagated both forward and backward relative to the ionizing laser. All backward and all superluminal cases mitigated the issue of ionization-induced refraction that typically inhibits the formation of long, contiguous plasma channels.
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Affiliation(s)
- D Turnbull
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
| | - P Franke
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
- University of Rochester Department of Physics & Astronomy, B&L Hall, Rochester, New York 14627, USA
| | - J Katz
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
- University of Rochester Institute of Optics, 480 Intercampus Drive, Rochester, New York 14627, USA
| | - J P Palastro
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
- University of Rochester Institute of Optics, 480 Intercampus Drive, Rochester, New York 14627, USA
| | - I A Begishev
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
- University of Rochester Institute of Optics, 480 Intercampus Drive, Rochester, New York 14627, USA
| | - R Boni
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
- University of Rochester Institute of Optics, 480 Intercampus Drive, Rochester, New York 14627, USA
| | - J Bromage
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
- University of Rochester Institute of Optics, 480 Intercampus Drive, Rochester, New York 14627, USA
| | - A L Milder
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
- University of Rochester Department of Physics & Astronomy, B&L Hall, Rochester, New York 14627, USA
| | - J L Shaw
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
| | - D H Froula
- University of Rochester Laboratory for Laser Energetics, 250 E River Rd., Rochester, New York 14623, USA
- University of Rochester Department of Physics & Astronomy, B&L Hall, Rochester, New York 14627, USA
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2
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Xu XL, Pai CH, Zhang CJ, Li F, Wan Y, Wu YP, Hua JF, Lu W, An W, Yu P, Joshi C, Mori WB. Nanoscale Electron Bunching in Laser-Triggered Ionization Injection in Plasma Accelerators. PHYSICAL REVIEW LETTERS 2016; 117:034801. [PMID: 27472116 DOI: 10.1103/physrevlett.117.034801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Indexed: 06/06/2023]
Abstract
Ionization injection is attractive as a controllable injection scheme for generating high quality electron beams using plasma-based wakefield acceleration. Because of the phase-dependent tunneling ionization rate and the trapping dynamics within a nonlinear wake, the discrete injection of electrons within the wake is nonlinearly mapped to a discrete final phase space structure of the beam at the location where the electrons are trapped. This phenomenon is theoretically analyzed and examined by three-dimensional particle-in-cell simulations which show that three-dimensional effects limit the wave number of the modulation to between >2k_{0} and about 5k_{0}, where k_{0} is the wave number of the injection laser. Such a nanoscale bunched beam can be diagnosed by and used to generate coherent transition radiation and may find use in generating high-power ultraviolet radiation upon passage through a resonant undulator.
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Affiliation(s)
- X L Xu
- University of California, Los Angeles, California 90095, USA
| | - C-H Pai
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - C J Zhang
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - F Li
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - Y Wan
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - Y P Wu
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - J F Hua
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
| | - W Lu
- Department of Engineering Physics, Tsinghua University, Beijing 100084, China
- IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - W An
- University of California, Los Angeles, California 90095, USA
| | - P Yu
- University of California, Los Angeles, California 90095, USA
| | - C Joshi
- University of California, Los Angeles, California 90095, USA
| | - W B Mori
- University of California, Los Angeles, California 90095, USA
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3
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Wesp C, van Hees H, Meistrenko A, Greiner C. Monte Carlo framework for noncontinuous interactions between particles and classical fields. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2015; 91:043302. [PMID: 25974607 DOI: 10.1103/physreve.91.043302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Indexed: 06/04/2023]
Abstract
Particles and fields are standard components in numerical calculations like transport simulations in nuclear physics and have well-understood dynamics. Still, a common problem is the interaction between particles and fields due to their different formal description. Particle interactions are discrete, pointlike events while field dynamics is described with continuous partial-differential equations of motion. A workaround is the use of effective theories like the Langevin equation with the drawback of energy conservation violation. We present a method, which allows us to model noncontinuous interactions between particles and scalar fields, allowing us to simulate scattering-like interactions which exchange discrete "quanta" of energy and momentum between fields and particles while obeying energy and momentum conservation and allowing control over interaction strengths and times. In this paper we apply this method to different model systems, starting with a simple harmonic oscillator, which is damped by losing discrete energy quanta. The second and third system consists of an oscillator and a one-dimensional field, which are damped via discrete energy loss and are coupled to a stochastic force, leading to equilibrium states which correspond to statistical Langevin-like systems. The last example is a scalar field in (1 + 3) space-time dimensions, which is coupled to a microcanonical ensemble of particles by incorporating particle production and annihilation processes. Obeying the detailed-balance principle, the system equilibrates to thermal and chemical equilibrium with dynamical fluctuations on the fields, generated dynamically by the discrete interactions.
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Affiliation(s)
- Christian Wesp
- Institut für theoretische Physik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - Hendrik van Hees
- Institut für theoretische Physik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - Alex Meistrenko
- Institut für theoretische Physik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
| | - Carsten Greiner
- Institut für theoretische Physik, Goethe-Universität Frankfurt am Main, Max-von-Laue-Straße 1, 60438 Frankfurt, Germany
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4
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Guidance of a Laser Beam Through an Axially Non-Uniform Plasma Channel in the Weakly Relativistic Limit. JOURNAL OF FUSION ENERGY 2011. [DOI: 10.1007/s10894-011-9425-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Haas F, Lazar M. Macroscopic description for the quantum Weibel instability. Phys Rev E 2008; 77:046404. [PMID: 18517742 DOI: 10.1103/physreve.77.046404] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2008] [Indexed: 11/07/2022]
Abstract
The Weibel instability in the quantum plasma case is treated by means of a fluidlike (moments) approach. Quantum modifications to the macroscopic equations are then identified as effects of the first or second kind. Quantum effects of the first kind correspond to a dispersive term, similar to the Bohm potential in the quantum hydrodynamic equations for plasmas. Effects of the second kind are due to the Fermi statistics of the charge carriers and can become the dominant influence for strong degeneracy. The macroscopic dispersion relations are of higher order than those for the classical Weibel instability. This corresponds to the presence of a cutoff wave number even for the strong temperature anisotropy case.
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Affiliation(s)
- F Haas
- Institut für Theoretische Physik IV, Ruhr-Universität Bochum, D-44780 Bochum, Germany
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6
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Geddes CGR, Nakamura K, Plateau GR, Toth C, Cormier-Michel E, Esarey E, Schroeder CB, Cary JR, Leemans WP. Plasma-density-gradient injection of low absolute-momentum-spread electron bunches. PHYSICAL REVIEW LETTERS 2008; 100:215004. [PMID: 18518614 DOI: 10.1103/physrevlett.100.215004] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2007] [Indexed: 05/26/2023]
Abstract
Plasma density gradients in a gas jet were used to control the wake phase velocity and trapping threshold in a laser wakefield accelerator, producing stable electron bunches with longitudinal and transverse momentum spreads more than 10 times lower than in previous experiments (0.17 and 0.02 MeV/c FWHM, respectively) and with central momenta of 0.76+/-0.02 MeV/c. Transition radiation measurements combined with simulations indicated that the bunches can be used as a wakefield accelerator injector to produce stable beams with 0.2 MeV/c-class momentum spread at high energies.
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Affiliation(s)
- C G R Geddes
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
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7
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Leemans W, Esarey E, Geddes C, Schroeder C, Tóth C. Laser guiding for GeV laser-plasma accelerators. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2006; 364:585-600. [PMID: 16483950 DOI: 10.1098/rsta.2005.1724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Guiding of relativistically intense laser beams in preformed plasma channels is discussed for development of GeV-class laser accelerators. Experiments using a channel guided laser wakefield accelerator at Lawrence Berkeley National Laboratory (LBNL) have demonstrated that near mono-energetic 100 MeV-class electron beams can be produced with a 10 TW laser system. Analysis, aided by particle-in-cell simulations, as well as experiments with various plasma lengths and densities, indicate that tailoring the length of the accelerator, together with loading of the accelerating structure with beam, is the key to production of mono-energetic electron beams. Increasing the energy towards a GeV and beyond will require reducing the plasma density and design criteria are discussed for an optimized accelerator module. The current progress and future directions are summarized through comparison with conventional accelerators, highlighting the unique short-term prospects for intense radiation sources based on laser-driven plasma accelerators.
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Affiliation(s)
- Wim Leemans
- Lawrence Berkeley National Laboratory LOASIS Program, Accelerator and Fusion Research Division Berkeley, CA 94720, USA.
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8
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Geddes CGR, Toth C, van Tilborg J, Esarey E, Schroeder CB, Cary J, Leemans WP. Guiding of relativistic laser pulses by preformed plasma channels. PHYSICAL REVIEW LETTERS 2005; 95:145002. [PMID: 16241663 DOI: 10.1103/physrevlett.95.145002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2004] [Indexed: 05/05/2023]
Abstract
Guiding of relativistically intense (>10(18) W/cm2) laser pulses over more than 10 diffraction lengths has been demonstrated using plasma channels formed by hydrodynamic shock. Pulses up to twice the self-guiding threshold power were guided without aberration by tuning the guide profile. Transmitted spectra and mode images showed the pulse remained in the channel over the entire length. Experiments varying guided mode power and simulations show a large plasma wave was driven. Operating just below the trapping threshold produces a dark current free structure suitable for controlled injection.
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Affiliation(s)
- C G R Geddes
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
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9
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He B, Chang TQ. Residual energy in optical-field-ionized plasmas with the longitudinal motion of electrons included. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2005; 71:066411. [PMID: 16089884 DOI: 10.1103/physreve.71.066411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2005] [Indexed: 05/03/2023]
Abstract
The space-charge effect on the residual energy of electrons in optical-field-ionized plasmas is studied in detail by an extended simplified model and the cloud-in-cell simulation, with the longitudinal motion of electrons included. It is found that in moderate conditions the space-charge field can influence the residual energy of electrons effectively by matching the space-charge field with laser pulse. The effect of stimulated Raman scattering on electron temperature is also investigated in detail. Finally, a comparison is made between the results and experimental data.
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Affiliation(s)
- Bin He
- Institute of Applied Physics and Computational Mathematics P.O. Box 8009-57, Beijing 100088, People's Republic of China
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10
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Zhidkov A, Koga J, Esirkepov T, Hosokai T, Uesaka M, Tajima T. Optical-field-ionization effects on the propagation of an ultraintense laser pulse in high- Z gas jets. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2004; 69:066408. [PMID: 15244746 DOI: 10.1103/physreve.69.066408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2003] [Revised: 02/23/2004] [Indexed: 05/24/2023]
Abstract
Interaction of an ultraintense, a(0) >>1, laser pulse with an underdense Ar plasma is analyzed via a two-dimensional particle-in-cell simulation which self-consistently includes optical-field ionization. In spite of rapid growth of ion charge Z and, hence, electron density at the laser front, relativistic self-focusing is shown to persist owing to a reduction of the expected plasma defocusing resulting from the weak radial dependence of the ion charge on laser intensity (even for Z/gamma>1 where gamma is the electron relativistic factor).
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Affiliation(s)
- A Zhidkov
- Nuclear Engineering Research Laboratory, Graduate School of Engineering, The University of Tokyo, 22-2 Shirane-shirakata, Tokai, Naka, Ibaraki 319-1188, Japan
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11
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Tochitsky SY, Narang R, Filip CV, Musumeci P, Clayton CE, Yoder RB, Marsh KA, Rosenzweig JB, Pellegrini C, Joshi C. Enhanced acceleration of injected electrons in a laser-beat-wave-induced plasma channel. PHYSICAL REVIEW LETTERS 2004; 92:095004. [PMID: 15089478 DOI: 10.1103/physrevlett.92.095004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2003] [Indexed: 05/24/2023]
Abstract
Enhanced energy gain of externally injected electrons by a approximately 3 cm long, high-gradient relativistic plasma wave (RPW) is demonstrated. Using a CO2 laser beat wave of duration longer than the ion motion time across the laser spot size, a laser self-guiding process is initiated in a plasma channel. Guiding compensates for ionization-induced defocusing (IID) creating a longer plasma, which extends the interaction length between electrons and the RPW. In contrast to a maximum energy gain of 10 MeV when IID is dominant, the electrons gain up to 38 MeV energy in a laser-beat-wave-induced plasma channel.
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Affiliation(s)
- S Ya Tochitsky
- Neptune Laboratory, Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA
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12
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Filip CV, Narang R, Tochitsky SY, Clayton CE, Musumeci P, Yoder RB, Marsh KA, Rosenzweig JB, Pellegrini C, Joshi C. Nonresonant beat-wave excitation of relativistic plasma waves with constant phase velocity for charged-particle acceleration. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2004; 69:026404. [PMID: 14995563 DOI: 10.1103/physreve.69.026404] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2003] [Indexed: 05/24/2023]
Abstract
The nonresonant beat-wave excitation of relativistic plasma waves is studied in two-dimensional simulations and experiments. It is shown through simulations that, as opposed to the resonant case, the accelerating electric fields associated with the nonresonant plasmons are always in phase with the beat-pattern of the laser pulse. The excitation of such nonresonant relativistic plasma waves is shown to be possible for plasma densities as high as 14 times the resonant density. The density fluctuations and the fields associated with these waves have significant magnitudes, facts confirmed experimentally using collinear Thomson scattering and electron injection, respectively. The applicability of these results towards eventual phase-locked acceleration of prebunched and externally injected electrons is discussed.
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Affiliation(s)
- C V Filip
- Neptune Laboratory, Department of Electrical Engineering, University of California-Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095, USA.
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13
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Leemans WP, Catravas P, Esarey E, Geddes CGR, Toth C, Trines R, Schroeder CB, Shadwick BA, Van Tilborg J, Faure J. Electron-yield enhancement in a laser-wakefield accelerator driven by asymmetric laser pulses. PHYSICAL REVIEW LETTERS 2002; 89:174802. [PMID: 12398675 DOI: 10.1103/physrevlett.89.174802] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2002] [Indexed: 05/24/2023]
Abstract
The effect of asymmetric laser pulses on electron yield from a laser wakefield accelerator has been experimentally studied using >10(19) cm(-3) plasmas and a 10 TW, >45 fs, Ti:Al2O3 laser. The laser pulse shape was controlled through nonlinear chirp with a grating pair compressor. Pulses (76 fs FWHM) with a steep rise and positive chirp were found to significantly enhance the electron yield compared to pulses with a gentle rise and negative chirp. Theory and simulation show that fast rising pulses can generate larger amplitude wakes that seed the growth of the self-modulation instability, and that frequency chirp is of minimal importance for the experimental parameters.
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Affiliation(s)
- W P Leemans
- Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA
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14
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Yang H, Zhang J, Yu W, Li YJ, Wei ZY. Long plasma channels generated by femtosecond laser pulses. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2002; 65:016406. [PMID: 11800789 DOI: 10.1103/physreve.65.016406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2000] [Revised: 06/04/2001] [Indexed: 05/23/2023]
Abstract
Generation of a long plasma channel by femtosecond laser pulses is investigated. The results show that the balance between the nonlinear self-focusing of the laser beam and plasma defocusing forms a long plasma channel, which guides the laser beam to propagate a long distance in air. This phenomenon can be used to trigger lightning.
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Affiliation(s)
- H Yang
- Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
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15
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Gildenburg VB, Zharova NA, Bakunov MI. Bulk-to-surface-wave self-conversion in optically induced ionization processes. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2001; 63:066402. [PMID: 11415230 DOI: 10.1103/physreve.63.066402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2000] [Indexed: 05/23/2023]
Abstract
Nonlinear time evolution of a p-polarized wave mode with inhomogeneous transverse structure producing tunnel ionization of a gas is investigated by numerical simulation and theoretical analysis. A phenomenon of trapping of electromagnetic radiation via its adiabatic conversion into surface waves guided by the field-created plasma structure is found out numerically. This process is accompanied by significant frequency downshifting of the electromagnetic radiation. The underlying physical mechanism is explained using a simple theoretical model. The described phenomena may play significant role in the self-channeling and frequency tuning of intense (approximately 10(14)-10(18) W/cm(2)) laser pulses in dense gases.
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Affiliation(s)
- V B Gildenburg
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603600, Russia
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16
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Ehrlich Y, Cohen C, Zigler A, Krall J, Sprangle P, Esarey E. Guiding of High Intensity Laser Pulses in Straight and Curved Plasma Channel Experiments. PHYSICAL REVIEW LETTERS 1996; 77:4186-4189. [PMID: 10062470 DOI: 10.1103/physrevlett.77.4186] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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17
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Sprangle P, Esarey E, Krall J. Self-guiding and stability of intense optical beams in gases undergoing ionization. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1996; 54:4211-4232. [PMID: 9965570 DOI: 10.1103/physreve.54.4211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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18
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Li YM, Fedosejevs R. Ionization-induced blue shift of KrF laser pulses in an underdense plasma. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1996; 54:2166-2169. [PMID: 9965307 DOI: 10.1103/physreve.54.2166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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19
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Anderson D, Kim AV, Lisak M, Mironov VA, Sergeev AM, Stenflo L. Self-sustained plasma waveguide structures produced by ionizing laser radiation in a dense gas. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1995; 52:4564-4567. [PMID: 9963939 DOI: 10.1103/physreve.52.4564] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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20
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Miyazaki K, Takada H. High-order harmonic generation in the tunneling regime. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 52:3007-3021. [PMID: 9912587 DOI: 10.1103/physreva.52.3007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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21
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Chichkov BN, Egbert A, Eichmann H, Momma C, Nolte S, Wellegehausen B. Soft-x-ray lasing to the ground states in low-charged oxygen ions. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1995; 52:1629-1639. [PMID: 9912403 DOI: 10.1103/physreva.52.1629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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22
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Coverdale CA, Darrow CB, Decker CD, Mori WB, Tzeng KC, Marsh KA, Clayton CE, Joshi C. Propagation of intense subpicosecond laser pulses through underdense plasmas. PHYSICAL REVIEW LETTERS 1995; 74:4659-4662. [PMID: 10058566 DOI: 10.1103/physrevlett.74.4659] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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23
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Umstadter D, Kim J, Esarey E, Dodd E, Neubert T. Resonantly laser-driven plasma waves for electron acceleration. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1995; 51:3484-3497. [PMID: 9963030 DOI: 10.1103/physreve.51.3484] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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24
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Esarey E, Krall J, Sprangle P. Envelope analysis of intense laser pulse self-modulation in plasmas. PHYSICAL REVIEW LETTERS 1994; 72:2887-2890. [PMID: 10056010 DOI: 10.1103/physrevlett.72.2887] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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25
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Pulsifer P, Apruzese JP, Davis J, Kepple P. Residual energy and its effect on gain in a Lyman- alpha laser. PHYSICAL REVIEW. A, ATOMIC, MOLECULAR, AND OPTICAL PHYSICS 1994; 49:3958-3965. [PMID: 9910693 DOI: 10.1103/physreva.49.3958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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26
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Umstadter D, Esarey E, Kim J. Nonlinear plasma waves resonantly driven by optimized laser pulse trains. PHYSICAL REVIEW LETTERS 1994; 72:1224-1227. [PMID: 10056654 DOI: 10.1103/physrevlett.72.1224] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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27
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Krall J, Ting A, Esarey E, Sprangle P. Enhanced acceleration in a self-modulated-laser wake-field accelerator. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1993; 48:2157-2161. [PMID: 9960833 DOI: 10.1103/physreve.48.2157] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Esarey E, Sprangle P, Krall J, Ting A, Joyce G. Optically guided laser wake‐field acceleration*. ACTA ACUST UNITED AC 1993. [DOI: 10.1063/1.860707] [Citation(s) in RCA: 105] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Clayton CE, Marsh KA, Dyson A, Everett M, Lal A, Leemans WP, Williams R, Joshi C. Ultrahigh-gradient acceleration of injected eletrons by laser-excited relativistic electron plasma waves. PHYSICAL REVIEW LETTERS 1993; 70:37-40. [PMID: 10053252 DOI: 10.1103/physrevlett.70.37] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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