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Photon acceleration and modulational instability during wakefield excitation using long laser pulses

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Photon acceleration and modulational instability during wakefield excitation using long laser pulses. / Trines, Raoul Milan Guido Monique; Murphy, C. D.; Lancaster, Katherine L.; Chekhlov, O.; Norreys, Peter A.; Bingham, R.; Mendonça, J. T.; Silva, L. O.; Mangles, Stuart P. D.; Kamperidis, Christos; Thomas, Alexander George Roy; Krushelnick, Karl; Najmudin, Zulfikar.

In: Plasma Physics and Controlled Fusion, Vol. 51, No. 2, 02.2009.

Research output: Contribution to journalJournal article

Harvard

Trines, RMGM, Murphy, CD, Lancaster, KL, Chekhlov, O, Norreys, PA, Bingham, R, Mendonça, JT, Silva, LO, Mangles, SPD, Kamperidis, C, Thomas, AGR, Krushelnick, K & Najmudin, Z 2009, 'Photon acceleration and modulational instability during wakefield excitation using long laser pulses', Plasma Physics and Controlled Fusion, vol. 51, no. 2. https://doi.org/10.1088/0741-3335/51/2/024008

APA

Trines, R. M. G. M., Murphy, C. D., Lancaster, K. L., Chekhlov, O., Norreys, P. A., Bingham, R., Mendonça, J. T., Silva, L. O., Mangles, S. P. D., Kamperidis, C., Thomas, A. G. R., Krushelnick, K., & Najmudin, Z. (2009). Photon acceleration and modulational instability during wakefield excitation using long laser pulses. Plasma Physics and Controlled Fusion, 51(2). https://doi.org/10.1088/0741-3335/51/2/024008

Vancouver

Trines RMGM, Murphy CD, Lancaster KL, Chekhlov O, Norreys PA, Bingham R et al. Photon acceleration and modulational instability during wakefield excitation using long laser pulses. Plasma Physics and Controlled Fusion. 2009 Feb;51(2). https://doi.org/10.1088/0741-3335/51/2/024008

Author

Trines, Raoul Milan Guido Monique ; Murphy, C. D. ; Lancaster, Katherine L. ; Chekhlov, O. ; Norreys, Peter A. ; Bingham, R. ; Mendonça, J. T. ; Silva, L. O. ; Mangles, Stuart P. D. ; Kamperidis, Christos ; Thomas, Alexander George Roy ; Krushelnick, Karl ; Najmudin, Zulfikar. / Photon acceleration and modulational instability during wakefield excitation using long laser pulses. In: Plasma Physics and Controlled Fusion. 2009 ; Vol. 51, No. 2.

Bibtex

@article{3c9b3e44ca4e4076986dff32290f84d4,
title = "Photon acceleration and modulational instability during wakefield excitation using long laser pulses",
abstract = "The modulational instability that occurs during the interaction of a long laser pulse and its own wakefield in an underdense plasma has been studied experimentally and theoretically. Recent experiments using laser pulses that are several times longer than the wakefield period have yielded transmission spectra that exhibit a series of secondary peaks flanking the main laser peak. These peaks are too closely spaced to be the result of Raman instabilities; their origin was found to be photon acceleration of the laser's photons in the wakefield instead. In the experiments described in this paper, a laser pulse of 50–200 fs containing 300–600 mJ was focused on the edge of a helium gas jet on a 25 µm focal spot. The observed transmission spectra show evidence of both ionization blueshift and modulation by the pulse's wakefield. The transmission spectra have also been modelled using a dedicated photon-kinetic numerical code. The modelling has revealed a direct correlation between the spectral modulations and the amplitude of the excited wakefield. By comparing the measured and simulating spectra, the origin of various spectral characteristics has been explained in terms of photon acceleration. The feasibility of using this effect as a wakefield diagnostic will be discussed.",
author = "Trines, {Raoul Milan Guido Monique} and Murphy, {C. D.} and Lancaster, {Katherine L.} and O. Chekhlov and Norreys, {Peter A.} and R. Bingham and Mendon{\c c}a, {J. T.} and Silva, {L. O.} and Mangles, {Stuart P. D.} and Christos Kamperidis and Thomas, {Alexander George Roy} and Karl Krushelnick and Zulfikar Najmudin",
year = "2009",
month = feb
doi = "10.1088/0741-3335/51/2/024008",
language = "English",
volume = "51",
journal = "Plasma Physics and Controlled Fusion",
issn = "0741-3335",
publisher = "IOP Publishing Ltd",
number = "2",

}

RIS

TY - JOUR

T1 - Photon acceleration and modulational instability during wakefield excitation using long laser pulses

AU - Trines, Raoul Milan Guido Monique

AU - Murphy, C. D.

AU - Lancaster, Katherine L.

AU - Chekhlov, O.

AU - Norreys, Peter A.

AU - Bingham, R.

AU - Mendonça, J. T.

AU - Silva, L. O.

AU - Mangles, Stuart P. D.

AU - Kamperidis, Christos

AU - Thomas, Alexander George Roy

AU - Krushelnick, Karl

AU - Najmudin, Zulfikar

PY - 2009/2

Y1 - 2009/2

N2 - The modulational instability that occurs during the interaction of a long laser pulse and its own wakefield in an underdense plasma has been studied experimentally and theoretically. Recent experiments using laser pulses that are several times longer than the wakefield period have yielded transmission spectra that exhibit a series of secondary peaks flanking the main laser peak. These peaks are too closely spaced to be the result of Raman instabilities; their origin was found to be photon acceleration of the laser's photons in the wakefield instead. In the experiments described in this paper, a laser pulse of 50–200 fs containing 300–600 mJ was focused on the edge of a helium gas jet on a 25 µm focal spot. The observed transmission spectra show evidence of both ionization blueshift and modulation by the pulse's wakefield. The transmission spectra have also been modelled using a dedicated photon-kinetic numerical code. The modelling has revealed a direct correlation between the spectral modulations and the amplitude of the excited wakefield. By comparing the measured and simulating spectra, the origin of various spectral characteristics has been explained in terms of photon acceleration. The feasibility of using this effect as a wakefield diagnostic will be discussed.

AB - The modulational instability that occurs during the interaction of a long laser pulse and its own wakefield in an underdense plasma has been studied experimentally and theoretically. Recent experiments using laser pulses that are several times longer than the wakefield period have yielded transmission spectra that exhibit a series of secondary peaks flanking the main laser peak. These peaks are too closely spaced to be the result of Raman instabilities; their origin was found to be photon acceleration of the laser's photons in the wakefield instead. In the experiments described in this paper, a laser pulse of 50–200 fs containing 300–600 mJ was focused on the edge of a helium gas jet on a 25 µm focal spot. The observed transmission spectra show evidence of both ionization blueshift and modulation by the pulse's wakefield. The transmission spectra have also been modelled using a dedicated photon-kinetic numerical code. The modelling has revealed a direct correlation between the spectral modulations and the amplitude of the excited wakefield. By comparing the measured and simulating spectra, the origin of various spectral characteristics has been explained in terms of photon acceleration. The feasibility of using this effect as a wakefield diagnostic will be discussed.

U2 - 10.1088/0741-3335/51/2/024008

DO - 10.1088/0741-3335/51/2/024008

M3 - Journal article

VL - 51

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 2

ER -