Observation of a strong correlation between electromagnetic soliton formation and relativistic self-focusing for ultra-short laser pulses propagating through an under-dense plasma

doi:https://doi.org/10.1063/1.4757982

Title: Observation of a strong correlation between electromagnetic soliton formation and relativistic self-focusing for ultra-short laser pulses propagating through an under-dense plasma

Full Record
Other Related Research

Abstract

A strong correlation is observed between the formation of electromagnetic solitons, generated during the interaction of a short intense laser pulse (30 fs, {approx}10{sup 18} W/cm{sup 2}) with a rarefied (<0.1n{sub c}) plasma, and pulse self-focusing. Pulse defocusing, which occurs after soliton generation, results in laser-pulse energy depletion. The role of stimulated Raman scattering in soliton generation is analyzed from 2D particle-in-cell simulations. An observed relationship between initial plasma density and soliton generation is presented that might have relevance to wake-field accelerators.

Authors:

Bin, Zhu; Yuchi, Wu; Kegong, Dong; Wei, Hong; Jian, Teng; Weimin, Zhou; Leifeng, Cao; Yuqiu, Gu ^[1]

Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang (China)

Publication Date:: 2012-10-15

OSTI Identifier:: 22068808

Resource Type:: Journal Article

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 19; Journal Issue: 10; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CORRELATIONS; FOCUSING; LASER RADIATION; PLASMA DENSITY; PLASMA SIMULATION; PULSES; RAMAN EFFECT; RELATIVISTIC RANGE; SOLITONS; TWO-DIMENSIONAL CALCULATIONS; WAKEFIELD ACCELERATORS

Citation Formats


                    Bin, Zhu, Yuchi, Wu, Kegong, Dong, Wei, Hong, Jian, Teng, Weimin, Zhou, Leifeng, Cao, and Yuqiu, Gu. Observation of a strong correlation between electromagnetic soliton formation and relativistic self-focusing for ultra-short laser pulses propagating through an under-dense plasma.  United States: N. p., 2012. 
        Web.  doi:10.1063/1.4757982.

Copy to clipboard


                    Bin, Zhu, Yuchi, Wu, Kegong, Dong, Wei, Hong, Jian, Teng, Weimin, Zhou, Leifeng, Cao, & Yuqiu, Gu. Observation of a strong correlation between electromagnetic soliton formation and relativistic self-focusing for ultra-short laser pulses propagating through an under-dense plasma.  United States.  https://doi.org/10.1063/1.4757982

Copy to clipboard


                    Bin, Zhu, Yuchi, Wu, Kegong, Dong, Wei, Hong, Jian, Teng, Weimin, Zhou, Leifeng, Cao, and Yuqiu, Gu. Mon .  
        "Observation of a strong correlation between electromagnetic soliton formation and relativistic self-focusing for ultra-short laser pulses propagating through an under-dense plasma".  United States.  https://doi.org/10.1063/1.4757982.

Copy to clipboard


                    
@article{osti_22068808,

  title        = {Observation of a strong correlation between electromagnetic soliton formation and relativistic self-focusing for ultra-short laser pulses propagating through an under-dense plasma},

  author       = {Bin, Zhu and Yuchi, Wu and Kegong, Dong and Wei, Hong and Jian, Teng and Weimin, Zhou and Leifeng, Cao and Yuqiu, Gu},

  abstractNote = {A strong correlation is observed between the formation of electromagnetic solitons, generated during the interaction of a short intense laser pulse (30 fs, {approx}10{sup 18} W/cm{sup 2}) with a rarefied (<0.1n{sub c}) plasma, and pulse self-focusing. Pulse defocusing, which occurs after soliton generation, results in laser-pulse energy depletion. The role of stimulated Raman scattering in soliton generation is analyzed from 2D particle-in-cell simulations. An observed relationship between initial plasma density and soliton generation is presented that might have relevance to wake-field accelerators.},

  doi          = {10.1063/1.4757982},

  url          = {https://www.osti.gov/biblio/22068808},
  journal      = {Physics of Plasmas},

  issn         = {1070-664X},

  number       = 10,

  volume       = 19,

  place        = {United States},

  year         = {2012},

  month        = {10}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1063/1.4757982

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Ionization effects in the generation of wake-fields by ultra-high contrast femtosecond laser pulses in argon gas

Journal Article Makito, K ; Shin, J -H ; Zhidkov, A ; ... - Physics of Plasmas

Difference in mechanisms of wake-field generation and electron self-injection by high contrast femtosecond laser pulses in an initially neutral Argon gas and in pre-ionized plasma without ionization is studied via 2D particle-in-cell simulations including optical ionization of the media. For shorter laser pulses, 40 fs, ionization results only in an increase of the charge of accelerated electrons by factor of {approx}3 with qualitatively the same energy distribution. For longer pulses, 80 fs, a more stable wake field structure is observed in the neutral gas with the maximal energy of the accelerated electrons exceeding that in the fixed density plasma. Inmore »« less
https://doi.org/10.1063/1.4757976
Propagation of an ultra-short, intense laser in a relativistic fluid

Conference Ritchie, A B ; Decker, C D

A Maxwell-relativistic fluid model is developed to describe the propagation of an ultrashort, intense laser pulse through an underdense plasma. The model makes use of numerically stabilizing fast Fourier transform (FFT) computational methods for both the Maxwell and fluid equations, and it is benchmarked against particle-in-cell (PIC) simulations. Strong fields generated in the wake of the laser are calculated, and the authors observe coherent wake-field radiation generated at harmonics of the plasma frequency due to nonlinearities in the laser-plasma interaction. For a plasma whose density is 10% of critical, the highest members of the plasma harmonic series begin to overlapmore »« less
Full Text Available
Two-Dimensional Regimes of Self-Focusing, Wake Field Generation, and Induced Focusing of a Short Intense Laser Pulse in an Underdense Plasma

Journal Article Bulanov, S V ; Pegoraro, F ; Pukhov, A M - Physical Review Letters; (United States)

The results of a two-dimensional particle-in-cell simulation and of an analytical description of the propagation in an underdense plasma of a short, relativistically intense, laser pulse are presented. Self-focusing is proven in an ultrarelativistic regime for moderately long pulses. Pulses shorter than the plasma wavelength, but wider than it, excite a wake wave with a regular electric field. The electron density in the wake has a horseshoe'' shape and focuses a long pulse locally. The excitation of stimulated Raman backward scattering is observed.
https://doi.org/10.1103/PhysRevLett.74.710
Onset of relativistic self-focusing in high density gas jet targets

Journal Article Fedosejevs, R ; Wang, X F ; Tsakiris, G D - Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

Optical investigations are reported of the interaction of 0.3 TW, 250 fs Ti:sapphire laser pulses with underdense plasmas created from high density gas jet targets. Time resolved shadowgraphy using a 2{omega} probe pulse, images of the transmitted radiation and images of 1{omega} and 2{omega} side radiation are presented for various gases. The experimental results and their analysis based on a simple numerical Gaussian beam model show that ionization-induced refraction dominates the interaction process for all gases except hydrogen. The numerical modeling also shows that for a given laser power there exists only a narrow density range in which self-focusing canmore »« less
https://doi.org/10.1103/PhysRevE.56.4615
Laser propagation and soliton generation in strongly magnetized plasmas

Journal Article Feng, W. ; Li, J. Q. ; Kishimoto, Y. - Physics of Plasmas

The propagation characteristics of various laser modes with different polarization, as well as the soliton generation in strongly magnetized plasmas are studied numerically through one-dimensional (1D) particle-in-cell (PIC) simulations and analytically by solving the laser wave equation. PIC simulations show that the laser heating efficiency substantially depends on the magnetic field strength, the propagation modes of the laser pulse and their intensities. Generally, large amplitude laser can efficiently heat the plasma with strong magnetic field. Theoretical analyses on the linear propagation of the laser pulse in both under-dense and over-dense magnetized plasmas are well confirmed by the numerical observations. Mostmore »« less
https://doi.org/10.1063/1.4942789

Similar Records