Soft X-ray harmonic comb from relativistic electron spikes

A.S. Pirozkhov; M. Kando; Esirkepov T. Zh; P. Gallegos; Hamad Ahmed; E.N. Ragozin; Faenov A. Ya; T.A. Pikuz; T. Kawachi; A. Sagisaka; J.K. Koga; M. Coury; J. Green; P.F. Foster; C. Brenner; Brendan Dromey; D.R. Symes; M. Mori; K. Kawase; T. Kameshima; Y. Fukuda; L. Chen; I. Daito; K. Ogura; Y. Hayashi; H. Kotaki; H. Kiriyama; H. Okada; N. Nishimori; T. Imazono; K. Kondo; T. Kimura; T. Tajima; H. Daido; P. Rajeev; P. McKenna; Marco Borghesi; D. Neely; Y. Kato; S.V. Bulanov

doi:10.1103/PhysRevLett.108.135004

Soft X-ray harmonic comb from relativistic electron spikes

A.S. Pirozkhov, M. Kando, Esirkepov T. Zh, P. Gallegos, Hamad Ahmed, E.N. Ragozin, Faenov A. Ya, T.A. Pikuz, T. Kawachi, A. Sagisaka, J.K. Koga, M. Coury, J. Green, P.F. Foster, C. Brenner, Brendan Dromey, D.R. Symes, M. Mori, K. Kawase, T. KameshimaY. Fukuda, L. Chen, I. Daito, K. Ogura, Y. Hayashi, H. Kotaki, H. Kiriyama, H. Okada, N. Nishimori, T. Imazono, K. Kondo, T. Kimura, T. Tajima, H. Daido, P. Rajeev, P. McKenna, Marco Borghesi, D. Neely, Y. Kato, S.V. Bulanov

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Abstract

We demonstrate a new high-order harmonic generation mechanism reaching the "water window" spectral region in experiments with multiterawatt femtosecond lasers irradiating gas jets. A few hundred harmonic orders are resolved, giving mu J/sr pulses. Harmonics are collectively emitted by an oscillating electron spike formed at the joint of the boundaries of a cavity and bow wave created by a relativistically self-focusing laser in underdense plasma. The spike sharpness and stability are explained by catastrophe theory. The mechanism is corroborated by particle-in-cell simulations.

Original language	English
Article number	135004
Number of pages	5
Journal	Physical Review Letters
Volume	108
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.108.135004
Publication status	Published - 30 Mar 2012

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.108.135004

Soft-X-Ray Harmonic Comb from Relativistic Electron Spikes
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Pirozkhov, A. S., Kando, M., Zh, E. T., Gallegos, P., Ahmed, H., Ragozin, E. N., Ya, F. A., Pikuz, T. A., Kawachi, T., Sagisaka, A., Koga, J. K., Coury, M., Green, J., Foster, P. F., Brenner, C., Dromey, B., Symes, D. R., Mori, M., Kawase, K., ... Bulanov, S. V. (2012). Soft X-ray harmonic comb from relativistic electron spikes. Physical Review Letters, 108(13), Article 135004. https://doi.org/10.1103/PhysRevLett.108.135004

@article{18cbfebb2f7443238e337f1e0395f995,

title = "Soft X-ray harmonic comb from relativistic electron spikes",

abstract = "We demonstrate a new high-order harmonic generation mechanism reaching the {"}water window{"} spectral region in experiments with multiterawatt femtosecond lasers irradiating gas jets. A few hundred harmonic orders are resolved, giving mu J/sr pulses. Harmonics are collectively emitted by an oscillating electron spike formed at the joint of the boundaries of a cavity and bow wave created by a relativistically self-focusing laser in underdense plasma. The spike sharpness and stability are explained by catastrophe theory. The mechanism is corroborated by particle-in-cell simulations. ",

author = "A.S. Pirozkhov and M. Kando and Zh, {Esirkepov T.} and P. Gallegos and Hamad Ahmed and E.N. Ragozin and Ya, {Faenov A.} and T.A. Pikuz and T. Kawachi and A. Sagisaka and J.K. Koga and M. Coury and J. Green and P.F. Foster and C. Brenner and Brendan Dromey and D.R. Symes and M. Mori and K. Kawase and T. Kameshima and Y. Fukuda and L. Chen and I. Daito and K. Ogura and Y. Hayashi and H. Kotaki and H. Kiriyama and H. Okada and N. Nishimori and T. Imazono and K. Kondo and T. Kimura and T. Tajima and H. Daido and P. Rajeev and P. McKenna and Marco Borghesi and D. Neely and Y. Kato and S.V. Bulanov",

year = "2012",

month = mar,

day = "30",

doi = "10.1103/PhysRevLett.108.135004",

language = "English",

volume = "108",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

}

Pirozkhov, AS, Kando, M, Zh, ET, Gallegos, P, Ahmed, H, Ragozin, EN, Ya, FA, Pikuz, TA, Kawachi, T, Sagisaka, A, Koga, JK, Coury, M, Green, J, Foster, PF, Brenner, C, Dromey, B, Symes, DR, Mori, M, Kawase, K, Kameshima, T, Fukuda, Y, Chen, L, Daito, I, Ogura, K, Hayashi, Y, Kotaki, H, Kiriyama, H, Okada, H, Nishimori, N, Imazono, T, Kondo, K, Kimura, T, Tajima, T, Daido, H, Rajeev, P, McKenna, P, Borghesi, M, Neely, D, Kato, Y & Bulanov, SV 2012, 'Soft X-ray harmonic comb from relativistic electron spikes', Physical Review Letters, vol. 108, no. 13, 135004. https://doi.org/10.1103/PhysRevLett.108.135004

TY - JOUR

T1 - Soft X-ray harmonic comb from relativistic electron spikes

AU - Pirozkhov, A.S.

AU - Kando, M.

AU - Zh, Esirkepov T.

AU - Gallegos, P.

AU - Ahmed, Hamad

AU - Ragozin, E.N.

AU - Ya, Faenov A.

AU - Pikuz, T.A.

AU - Kawachi, T.

AU - Sagisaka, A.

AU - Koga, J.K.

AU - Coury, M.

AU - Green, J.

AU - Foster, P.F.

AU - Brenner, C.

AU - Dromey, Brendan

AU - Symes, D.R.

AU - Mori, M.

AU - Kawase, K.

AU - Kameshima, T.

AU - Fukuda, Y.

AU - Chen, L.

AU - Daito, I.

AU - Ogura, K.

AU - Hayashi, Y.

AU - Kotaki, H.

AU - Kiriyama, H.

AU - Okada, H.

AU - Nishimori, N.

AU - Imazono, T.

AU - Kondo, K.

AU - Kimura, T.

AU - Tajima, T.

AU - Daido, H.

AU - Rajeev, P.

AU - McKenna, P.

AU - Borghesi, Marco

AU - Neely, D.

AU - Kato, Y.

AU - Bulanov, S.V.

PY - 2012/3/30

Y1 - 2012/3/30

N2 - We demonstrate a new high-order harmonic generation mechanism reaching the "water window" spectral region in experiments with multiterawatt femtosecond lasers irradiating gas jets. A few hundred harmonic orders are resolved, giving mu J/sr pulses. Harmonics are collectively emitted by an oscillating electron spike formed at the joint of the boundaries of a cavity and bow wave created by a relativistically self-focusing laser in underdense plasma. The spike sharpness and stability are explained by catastrophe theory. The mechanism is corroborated by particle-in-cell simulations.

AB - We demonstrate a new high-order harmonic generation mechanism reaching the "water window" spectral region in experiments with multiterawatt femtosecond lasers irradiating gas jets. A few hundred harmonic orders are resolved, giving mu J/sr pulses. Harmonics are collectively emitted by an oscillating electron spike formed at the joint of the boundaries of a cavity and bow wave created by a relativistically self-focusing laser in underdense plasma. The spike sharpness and stability are explained by catastrophe theory. The mechanism is corroborated by particle-in-cell simulations.

U2 - 10.1103/PhysRevLett.108.135004

DO - 10.1103/PhysRevLett.108.135004

M3 - Article

SN - 0031-9007

VL - 108

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 135004

ER -

Soft X-ray harmonic comb from relativistic electron spikes

Abstract

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