Ion acceleration by femtosecond laser pulses in small multispecies targets

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Ion acceleration by femtosecond laser pulses in small multispecies targets. / Psikal, J.; Tikhonchuk, V. T.; Limpouch, J.; Andreev, A. A.; Brantov, A. V.

In: Physics of Plasmas, Vol. 15, No. 5, 053102, 2008.

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

Author

Psikal, J. ; Tikhonchuk, V. T. ; Limpouch, J. ; Andreev, A. A. ; Brantov, A. V. / Ion acceleration by femtosecond laser pulses in small multispecies targets. In: Physics of Plasmas. 2008 ; Vol. 15, No. 5.

BibTeX

@article{deae2488d5974cbd87a5bfd2d7fccb27,

title = "Ion acceleration by femtosecond laser pulses in small multispecies targets",

abstract = "Ion acceleration by ultrashort intense femtosecond laser pulses (∼4× 1019 W cm2, ∼30 fs) in small targets of uniform chemical composition of two ion species (protons and carbon C4+ ions) is studied theoretically via a particle-in-cell code with two spatial and three velocity components. Energy spectra of accelerated ions, the number and divergence of fast protons, are compared for various target shapes (cylinder, flat foil, curved foil) and density profiles. Dips and peaks are observed in proton energy spectra due to mutual interaction between two ion species. The simulations demonstrate that maximum energy of fast protons depends on the efficiency of laser absorption and the cross section of the hot electron cloud behind the target. A rear-side plasma density ramp can substantially decrease the energy of fast ions and simultaneously enhance their number. These results are compared with analytical estimates and with previously published experiments.",

author = "J. Psikal and Tikhonchuk, {V. T.} and J. Limpouch and Andreev, {A. A.} and Brantov, {A. V.}",

note = "Funding Information: This research has been partly supported by the Czech Science Foundation Project No. 202/06/0801 and by the Ministry of Education, Youth and Sports of the Czech Republic in the frame of Project Nos. MSM6840770022 and LC528. Partial support of J.P. by Project No. CTU0708014 of the Czech Technical University in Prague is acknowledged. The authors are acknowledging the access to computing resources in the John von Neumann Institute for computing, Juelich, Germany, Project No. ECZ04. J.P. and J.L. want to express their gratitude to Dr. Paul Gibbon and to Dr. Norbert Attig for their support of our computing in Forschungszentrum Juelich.",

year = "2008",

doi = "10.1063/1.2913264",

language = "English",

volume = "15",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "5",

}

RIS

TY - JOUR

T1 - Ion acceleration by femtosecond laser pulses in small multispecies targets

AU - Psikal, J.

AU - Tikhonchuk, V. T.

AU - Limpouch, J.

AU - Andreev, A. A.

AU - Brantov, A. V.

N1 - Funding Information: This research has been partly supported by the Czech Science Foundation Project No. 202/06/0801 and by the Ministry of Education, Youth and Sports of the Czech Republic in the frame of Project Nos. MSM6840770022 and LC528. Partial support of J.P. by Project No. CTU0708014 of the Czech Technical University in Prague is acknowledged. The authors are acknowledging the access to computing resources in the John von Neumann Institute for computing, Juelich, Germany, Project No. ECZ04. J.P. and J.L. want to express their gratitude to Dr. Paul Gibbon and to Dr. Norbert Attig for their support of our computing in Forschungszentrum Juelich.

PY - 2008

Y1 - 2008

N2 - Ion acceleration by ultrashort intense femtosecond laser pulses (∼4× 1019 W cm2, ∼30 fs) in small targets of uniform chemical composition of two ion species (protons and carbon C4+ ions) is studied theoretically via a particle-in-cell code with two spatial and three velocity components. Energy spectra of accelerated ions, the number and divergence of fast protons, are compared for various target shapes (cylinder, flat foil, curved foil) and density profiles. Dips and peaks are observed in proton energy spectra due to mutual interaction between two ion species. The simulations demonstrate that maximum energy of fast protons depends on the efficiency of laser absorption and the cross section of the hot electron cloud behind the target. A rear-side plasma density ramp can substantially decrease the energy of fast ions and simultaneously enhance their number. These results are compared with analytical estimates and with previously published experiments.

AB - Ion acceleration by ultrashort intense femtosecond laser pulses (∼4× 1019 W cm2, ∼30 fs) in small targets of uniform chemical composition of two ion species (protons and carbon C4+ ions) is studied theoretically via a particle-in-cell code with two spatial and three velocity components. Energy spectra of accelerated ions, the number and divergence of fast protons, are compared for various target shapes (cylinder, flat foil, curved foil) and density profiles. Dips and peaks are observed in proton energy spectra due to mutual interaction between two ion species. The simulations demonstrate that maximum energy of fast protons depends on the efficiency of laser absorption and the cross section of the hot electron cloud behind the target. A rear-side plasma density ramp can substantially decrease the energy of fast ions and simultaneously enhance their number. These results are compared with analytical estimates and with previously published experiments.

UR - http://www.scopus.com/inward/record.url?scp=44649195010&partnerID=8YFLogxK

U2 - 10.1063/1.2913264

DO - 10.1063/1.2913264

M3 - Article

AN - SCOPUS:44649195010

VL - 15

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 5

M1 - 053102

ER -

ID: 85665706