Microjet formation and hard x-ray production from a liquid metal target irradiated by intense femtosecond laser pulses

A. Lar'kin, D. Uryupina, K. Ivanov, A. Savel'ev, T. Bonnet, F. Gobet, F. Hannachi, M. Tarisien, M. Versteegen, K. Spohr, J. Breil, B. Chimier, F. Dorchies, C. Fourment, P.-M. Leguay, V.T. Tikhonchuk

Research output: Contribution to journalArticle

Abstract

By using a liquid metal as a target one may significantly enhance the yield of hard x-rays with a sequence of two intense femtosecond laser pulses. The influence of the time delay between the two pulses is studied experimentally and interpreted with numerical simulations. It was suggested that the first arbitrary weak pulse produces microjets from the target surface, while the second intense pulse provides an efficient electron heating and acceleration along the jet surface. These energetic electrons are the source of x-ray emission while striking the target surface. The microjet formation is explained based on the results given by both optical diagnostics and hydrodynamic modeling by a collision of shocks originated from two distinct zones of laser energy deposition.
Original languageEnglish
Number of pages1
JournalPhysics of Plasmas
Volume21
Issue number9
DOIs
Publication statusPublished - 2014

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liquid metals
pulses
lasers
x rays
electrons
time lag
shock
hydrodynamics
heating
collisions
simulation
energy

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Lar'kin, A., Uryupina, D., Ivanov, K., Savel'ev, A., Bonnet, T., Gobet, F., ... Tikhonchuk, V. T. (2014). Microjet formation and hard x-ray production from a liquid metal target irradiated by intense femtosecond laser pulses. Physics of Plasmas, 21(9). https://doi.org/10.1063/1.4894099
Lar'kin, A. ; Uryupina, D. ; Ivanov, K. ; Savel'ev, A. ; Bonnet, T. ; Gobet, F. ; Hannachi, F. ; Tarisien, M. ; Versteegen, M. ; Spohr, K. ; Breil, J. ; Chimier, B. ; Dorchies, F. ; Fourment, C. ; Leguay, P.-M. ; Tikhonchuk, V.T. / Microjet formation and hard x-ray production from a liquid metal target irradiated by intense femtosecond laser pulses. In: Physics of Plasmas. 2014 ; Vol. 21, No. 9.
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abstract = "By using a liquid metal as a target one may significantly enhance the yield of hard x-rays with a sequence of two intense femtosecond laser pulses. The influence of the time delay between the two pulses is studied experimentally and interpreted with numerical simulations. It was suggested that the first arbitrary weak pulse produces microjets from the target surface, while the second intense pulse provides an efficient electron heating and acceleration along the jet surface. These energetic electrons are the source of x-ray emission while striking the target surface. The microjet formation is explained based on the results given by both optical diagnostics and hydrodynamic modeling by a collision of shocks originated from two distinct zones of laser energy deposition.",
author = "A. Lar'kin and D. Uryupina and K. Ivanov and A. Savel'ev and T. Bonnet and F. Gobet and F. Hannachi and M. Tarisien and M. Versteegen and K. Spohr and J. Breil and B. Chimier and F. Dorchies and C. Fourment and P.-M. Leguay and V.T. Tikhonchuk",
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Lar'kin, A, Uryupina, D, Ivanov, K, Savel'ev, A, Bonnet, T, Gobet, F, Hannachi, F, Tarisien, M, Versteegen, M, Spohr, K, Breil, J, Chimier, B, Dorchies, F, Fourment, C, Leguay, P-M & Tikhonchuk, VT 2014, 'Microjet formation and hard x-ray production from a liquid metal target irradiated by intense femtosecond laser pulses' Physics of Plasmas, vol. 21, no. 9. https://doi.org/10.1063/1.4894099

Microjet formation and hard x-ray production from a liquid metal target irradiated by intense femtosecond laser pulses. / Lar'kin, A.; Uryupina, D.; Ivanov, K.; Savel'ev, A.; Bonnet, T.; Gobet, F.; Hannachi, F.; Tarisien, M.; Versteegen, M.; Spohr, K.; Breil, J.; Chimier, B.; Dorchies, F.; Fourment, C.; Leguay, P.-M.; Tikhonchuk, V.T.

In: Physics of Plasmas, Vol. 21, No. 9, 2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Microjet formation and hard x-ray production from a liquid metal target irradiated by intense femtosecond laser pulses

AU - Lar'kin, A.

AU - Uryupina, D.

AU - Ivanov, K.

AU - Savel'ev, A.

AU - Bonnet, T.

AU - Gobet, F.

AU - Hannachi, F.

AU - Tarisien, M.

AU - Versteegen, M.

AU - Spohr, K.

AU - Breil, J.

AU - Chimier, B.

AU - Dorchies, F.

AU - Fourment, C.

AU - Leguay, P.-M.

AU - Tikhonchuk, V.T.

PY - 2014

Y1 - 2014

N2 - By using a liquid metal as a target one may significantly enhance the yield of hard x-rays with a sequence of two intense femtosecond laser pulses. The influence of the time delay between the two pulses is studied experimentally and interpreted with numerical simulations. It was suggested that the first arbitrary weak pulse produces microjets from the target surface, while the second intense pulse provides an efficient electron heating and acceleration along the jet surface. These energetic electrons are the source of x-ray emission while striking the target surface. The microjet formation is explained based on the results given by both optical diagnostics and hydrodynamic modeling by a collision of shocks originated from two distinct zones of laser energy deposition.

AB - By using a liquid metal as a target one may significantly enhance the yield of hard x-rays with a sequence of two intense femtosecond laser pulses. The influence of the time delay between the two pulses is studied experimentally and interpreted with numerical simulations. It was suggested that the first arbitrary weak pulse produces microjets from the target surface, while the second intense pulse provides an efficient electron heating and acceleration along the jet surface. These energetic electrons are the source of x-ray emission while striking the target surface. The microjet formation is explained based on the results given by both optical diagnostics and hydrodynamic modeling by a collision of shocks originated from two distinct zones of laser energy deposition.

U2 - 10.1063/1.4894099

DO - 10.1063/1.4894099

M3 - Article

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JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

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