Self-resonant wakefield generation by intense laser pulse in plasmas

Andreev, N. E.; Gorbunov, L. M.; Kirsanov, V. I.; Pogosova, A. A.; Ramazashvili, Revaz

doi:10.1117/12.155790

Cited by 10 publications

(21 citation statements)

References 3 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The two laser-plasma accelerator configurations that have received the most attention are the plasma beat wave accelerator ͑PBWA͒ 12,38 -41 and the laser wakefield accelerator ͑LWFA͒. [12][13][14][15][16][17][18][19][20][21][22][23] The PBWA utilizes two laser beams of frequencies 1 and 2 , such that 1 Ϫ 2 Ӎ p is the plasma frequency, to resonantly drive a plasma wave. The following discussion is concerned primarily with the LWFA.…”

Section: Laser Acceleration In Plasmasmentioning

confidence: 99%

“…If the pulse length is approximately equal to the plasma wavelength, c L Ӎ p , the ponderomotive force excites large-amplitude plasma waves ͑wakefields͒ with phase velocities approximately equal to the laser pulse group velocity. [12][13][14][15][16][17][18][19][20][21][22][23][24] The maximum wakefield amplitude generated by a linearly polarized laser pulse of amplitude a 0 , in the one-dimensional ͑1-D͒ limit r 0 2 ӷ p 2 , is 15-18…”

Section: A Laser Wakefield Accelerationmentioning

confidence: 99%

“…51 Optical beams propagating in plasmas can undergo a wide range of instabilities that can limit the interaction distance. These instabilities include backward and forward Raman scattering, 21,52-54 self-modulation, [19][20][21][22][23]55 and laser hosing. 56,57 …”

Section: B Optical Guiding In Plasmamentioning

confidence: 99%

“…[19][20][21][22][23] This occurs when the laser pulse length is several plasma wavelengths, c L Ͼ p , and the peak laser power satisfies Pу P c , where P c ͑GW͒Ӎ17͑ p /͒ 2 is the critical power. At fixed laser parameters, both conditions can be met by choosing a sufficiently high plasma density, since P c ϳ1/n e0 and p ϳ1/n e0 1/2 .…”

Section: Self-modulated Laser Wakefield Accelerationmentioning

confidence: 99%

“…1 In this paper we will discuss laser acceleration of electrons in ͑i͒ vacuum, 2-8 ͑ii͒ neutral gases ͑inverse Cherenkov acceleration͒, [9][10][11] and ͑iii͒ plasmas ͑laser wakefield acceleration͒. [12][13][14][15][16][17][18][19][20][21][22][23][24][25] Advances in laser technology 26,27 have made possible compact terawatt laser systems with high intensities ͑տ10 18 W/cm 2 ͒, modest energies ͑Շ100 J͒, and short pulses ͑Շ1 ps͒. The peak amplitude of the transverse electric field of a linearly polarized laser pulse is given by E L ͑ TV/m͒ϭ2.7ϫ10 Ϫ9 I 1/2 ͑ W/cm 2 ͒ϭ3.2a 0 /͑m͒, ͑1͒…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Laser driven electron acceleration in vacuum, gases, and plasmas

1996

View full text Add to dashboard Cite

In this paper we discuss some of the important issues pertaining to laser acceleration in vacuum, neutral gases, and plasmas. The limitations of laser vacuum acceleration as they relate to electron slippage, laser diffraction, material damage, and electron aperture effects, are discussed. An inverse Cherenkov laser acceleration configuration is presented in which a laser beam is self-guided in a partially ionized gas. Optical self-guiding is the result of a balance between the nonlinear self-focusing properties of neutral gases and the diffraction effects of ionization. The stability of self-guided beams is analyzed and discussed. In addition, aspects of the laser wakefield accelerator are presented and laser-driven accelerator experiments are briefly discussed.

show abstract

Section: Laser Acceleration In Plasmasmentioning

confidence: 99%

Section: A Laser Wakefield Accelerationmentioning

confidence: 99%

Section: B Optical Guiding In Plasmamentioning

confidence: 99%

Section: Self-modulated Laser Wakefield Accelerationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Laser driven electron acceleration in vacuum, gases, and plasmas

1996

View full text Add to dashboard Cite

show abstract

Principles of laser–plasma accelerators

Malka

Mora

2009

Comptes Rendus. Physique

View full text Add to dashboard Cite

The continuing development of powerful laser systems has permitted to extend the interaction of laser beams with matter far into the relativistic domain in which extremely high electric and magnetic fields are generated. Thanks to these tremendous fields, that only plasma can support and sustain, new and compact approaches for producing energetic particle beams have been recently achieved. The incredible progress of these laser-plasma accelerators has allowed physicists to produce high quality beams of energetic radiation and particles. These beams have interesting properties such as shortness, brightness and spatial quality, and could lend themselves to applications in many fields, including medicine (radiotherapy, proton therapy, imaging), radiation biology (short-time-scale), chemistry (radiolysis), physics and material science (radiography, electron and photon diffraction), security (material inspection), and of course accelerator science. Stimulated by the advent of compact and powerful lasers, with moderate costs and high repetition rate, this research field has witnessed considerable growth in the past few years, and the promises of laserplasma accelerators are in tremendous progress. The recent years in particular have seen spectacular progress in the acceleration of electrons and of ions, both in terms of energy and in terms of quality of the beams.

show abstract

Ultrashort laser pulses and ultrashort electron bunches generated in relativistic laser-plasma interaction

et al. 2006

View full text Add to dashboard Cite

An experimental study of the interaction of ultrashort laser pulses with underdense plasmas in the relativistic regime is presented. A parameter regime of particular interest was found: the so-called bubble regime. In this regime, the laser pulse is focused to relativistic intensities and its pulse duration is comparable to or shorter than the plasma period. A wealth of physical phenomena occurs for such physical parameters. These phenomena have multiple signatures which have been investigated experimentally: (i) the generation of a high quality electron beam (high energy, very collimated, quasimonoenergetic energy distribution); (ii) the laser pulse temporal shortening in nonlinear plasma waves. In addition, experimental results suggest that the electron beam produced in this way has temporal structures shorter than 50fs.

show abstract

Self-resonant wakefield generation by intense laser pulse in plasmas

Cited by 10 publications

References 3 publications

Laser driven electron acceleration in vacuum, gases, and plasmas

Laser driven electron acceleration in vacuum, gases, and plasmas

Principles of laser–plasma accelerators

Ultrashort laser pulses and ultrashort electron bunches generated in relativistic laser-plasma interaction

Contact Info

Product

Resources

About