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Title: Picosecond laser filamentation in air

Authors:
; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1315843
Grant/Contract Number:
AC52-07NA27344; 2015-056129; 2016-057594
Resource Type:
Journal Article: Published Article
Journal Name:
New Journal of Physics
Additional Journal Information:
Journal Volume: 18; Journal Issue: 9; Related Information: CHORUS Timestamp: 2017-06-24 17:53:37; Journal ID: ISSN 1367-2630
Publisher:
IOP Publishing
Country of Publication:
United Kingdom
Language:
English

Citation Formats

Schmitt-Sody, Andreas, Kurz, Heiko G., Bergé, Luc, Skupin, Stefan, and Polynkin, Pavel. Picosecond laser filamentation in air. United Kingdom: N. p., 2016. Web. doi:10.1088/1367-2630/18/9/093005.
Schmitt-Sody, Andreas, Kurz, Heiko G., Bergé, Luc, Skupin, Stefan, & Polynkin, Pavel. Picosecond laser filamentation in air. United Kingdom. doi:10.1088/1367-2630/18/9/093005.
Schmitt-Sody, Andreas, Kurz, Heiko G., Bergé, Luc, Skupin, Stefan, and Polynkin, Pavel. 2016. "Picosecond laser filamentation in air". United Kingdom. doi:10.1088/1367-2630/18/9/093005.
@article{osti_1315843,
title = {Picosecond laser filamentation in air},
author = {Schmitt-Sody, Andreas and Kurz, Heiko G. and Bergé, Luc and Skupin, Stefan and Polynkin, Pavel},
abstractNote = {},
doi = {10.1088/1367-2630/18/9/093005},
journal = {New Journal of Physics},
number = 9,
volume = 18,
place = {United Kingdom},
year = 2016,
month = 9
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1088/1367-2630/18/9/093005

Citation Metrics:
Cited by: 1work
Citation information provided by
Web of Science

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  • Production of protons with energies of {approximately}20 keV have been observed to originate from the interaction of a high intensity laser with a preformed underdense plasma. The energy and distribution of the ions are explained by acceleration by the ponderomotive force resulting from filamentation. {copyright} {ital 1996 The American Physical Society.}
  • The understanding of laser beam propagation through underdense plasmas is of vital importance to laser-plasma interaction experiments, as well as being a fundamental physics issue. Formation of plasma channels has numerous applications including table-top x-ray lasers and laser-plasma-produced particle accelerators. The fast ignitor concept, for example, requires the formation of an evacuated channel through a large, underdense plasma. Scaled experiments have shown that the axial extent of a channel formed by a 100 ps pulse is limited by the onset of the filamentation instability. We have obtained quantitative comparison between filamentation theory and experiment. More recent experiments have shown thatmore » by increasing the duration of the channel-forming pulse, the filamentation instability is overcome and the channel extent is substantially increased. This result has important implications for the fast ignitor design and the understanding of time-dependent beam dynamics. {copyright} {ital 1996 American Institute of Physics.}« less
  • The splitted beam filamentation in interaction of laser and an exponential decay inhomogeneous underdense plasma is investigated. Based on Wentzel-Kramers-Brillouin (WKB) approximation and paraxial/nonparaxial ray theory, simulation results show that the steady beam width and single beam filamentation along the propagation distance in paraxial case is due to the influence of ponderomotive nonlinearity. In nonparaxial case, the influence of the off-axial of {alpha}{sub 00} and {alpha}{sub 02} (the departure of the beam from the Gaussian nature) and S{sub 02} (the departure from the spherical nature) results in more complicated ponderomotive nonlinearity and changing of the channel density and refractive index,more » which led to the formation of two/three splitted beam filamentation and the self-distortion of beam width. In addition, influence of several parameters on two/three splitted beam filamentation is discussed.« less
  • The multiple filaments formation process in the laser wakefield accelerator (LWFA) was observed by imaging the transmitted laser beam after propagating in the plasma of different density. During propagation, the laser first self-focused into a single filament. After that, it began to defocus with energy spreading in the transverse direction. Two filaments then formed from it and began to propagate independently, moving away from each other. We have also demonstrated that the laser multiple filamentation would lead to the multiple electron beams acceleration in the LWFA via ionization-induced injection scheme. Besides, its influences on the accelerated electron beams were alsomore » analyzed both in the single-stage LWFA and cascaded LWFA.« less