Soft-x-ray harmonic comb from relativistic electron spikes

A. S. Pirozhkov; M. Kando; T. Zh Esirkepov; P. Gallegos; H. Ahmed; E. N. Ragozin; A. Ya Faenov; T. A. Pikuz; T. Kawachi; A. Sagisaka; J. K. Koga; M. Coury; J. Green; P. Foster; C. Brenner; B. 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; M. 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. Pirozhkov, M. Kando, T. Zh Esirkepov, P. Gallegos, H. Ahmed, E. N. Ragozin, A. Ya Faenov, T. A. Pikuz, T. Kawachi, A. Sagisaka, J. K. Koga, M. Coury, J. Green, P. Foster, C. Brenner, B. 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, M. Borghesi, D. Neely, Y. Kato, S. V. Bulanov

Research output: Contribution to journal › Article › peer-review

62 Citations (Scopus)

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
Pages (from-to)	-
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

Keywords

x-ray harmonic comb
harmonic comb
relativistic electron spikes
electron spikes

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10.1103/PhysRevLett.108.135004

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McKenna, P.
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Pirozhkov, A. S., Kando, M., Esirkepov, T. Z., Gallegos, P., Ahmed, H., Ragozin, E. N., Faenov, A. Y., Pikuz, T. A., Kawachi, T., Sagisaka, A., Koga, J. K., Coury, M., Green, J., Foster, P., 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), -. [135004]. https://doi.org/10.1103/PhysRevLett.108.135004

Pirozhkov, A. S. ; Kando, M. ; Esirkepov, T. Zh ; Gallegos, P. ; Ahmed, H. ; Ragozin, E. N. ; Faenov, A. Ya ; Pikuz, T. A. ; Kawachi, T. ; Sagisaka, A. ; Koga, J. K. ; Coury, M. ; Green, J. ; Foster, P. ; Brenner, C. ; Dromey, B. ; Symes, D. R. ; 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, S. V. / Soft-x-ray harmonic comb from relativistic electron spikes. In: Physical Review Letters. 2012 ; Vol. 108, No. 13. pp. -.

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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.",

keywords = "x-ray harmonic comb , harmonic comb , relativistic electron spikes , electron spikes",

author = "Pirozhkov, {A. S.} and M. Kando and Esirkepov, {T. Zh} and P. Gallegos and H. Ahmed and Ragozin, {E. N.} and Faenov, {A. Ya} and Pikuz, {T. A.} and T. Kawachi and A. Sagisaka and Koga, {J. K.} and M. Coury and J. Green and P. Foster and C. Brenner and B. Dromey and Symes, {D. R.} 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 M. Borghesi and D. Neely and Y. Kato and Bulanov, {S. V.}",

year = "2012",

month = mar,

day = "30",

doi = "10.1103/PhysRevLett.108.135004",

language = "English",

volume = "108",

pages = "--",

journal = "Physical Review Letters",

issn = "0031-9007",

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Pirozhkov, AS, Kando, M, Esirkepov, TZ, Gallegos, P, Ahmed, H, Ragozin, EN, Faenov, AY, Pikuz, TA, Kawachi, T, Sagisaka, A, Koga, JK, Coury, M, Green, J, Foster, P, 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, pp. -. https://doi.org/10.1103/PhysRevLett.108.135004

Soft-x-ray harmonic comb from relativistic electron spikes. / Pirozhkov, A. S.; Kando, M.; Esirkepov, T. Zh; Gallegos, P.; Ahmed, H.; Ragozin, E. N.; Faenov, A. Ya; Pikuz, T. A.; Kawachi, T.; Sagisaka, A.; Koga, J. K.; Coury, M.; Green, J.; Foster, P.; Brenner, C.; Dromey, B.; Symes, D. R.; 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, S. V.

In: Physical Review Letters, Vol. 108, No. 13, 135004, 30.03.2012, p. -.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

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

AU - Pirozhkov, A. S.

AU - Kando, M.

AU - Esirkepov, T. Zh

AU - Gallegos, P.

AU - Ahmed, H.

AU - Ragozin, E. N.

AU - Faenov, A. Ya

AU - Pikuz, T. A.

AU - Kawachi, T.

AU - Sagisaka, A.

AU - Koga, J. K.

AU - Coury, M.

AU - Green, J.

AU - Foster, P.

AU - Brenner, C.

AU - Dromey, B.

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, M.

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.

KW - x-ray harmonic comb

KW - harmonic comb

KW - relativistic electron spikes

KW - electron spikes

UR - http://www.scopus.com/inward/record.url?scp=84859336923&partnerID=8YFLogxK

UR - http://arxiv.org/abs/1201.0333

U2 - 10.1103/PhysRevLett.108.135004

DO - 10.1103/PhysRevLett.108.135004

M3 - Article

VL - 108

SP - -

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 13

M1 - 135004

ER -

Soft-x-ray harmonic comb from relativistic electron spikes

Abstract

Keywords

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