Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses

M. V. Sedov; A. Ya Faenov; A. A. Andreev; I. Yu Skobelev; S. N. Ryazantsev; T. A. Pikuz; P. Durey; L. Doehl; D. Farley; C. D. Baird; K. L. Lancaster; C. D. Murphy; N. Booth; C. Spindloe; K. Yu Platonov; P. Mckenna; R. Kodama; N. Woolsey; S. A. Pikuz

doi:10.1017/S0263034619000351

Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses

M. V. Sedov^*, A. Ya Faenov, A. A. Andreev, I. Yu Skobelev, S. N. Ryazantsev, T. A. Pikuz, P. Durey, L. Doehl, D. Farley, C. D. Baird, K. L. Lancaster, C. D. Murphy, N. Booth, C. Spindloe, K. Yu Platonov, P. Mckenna, R. Kodama, N. Woolsey, S. A. Pikuz

^*Corresponding author for this work

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

Abstract

The use of targets with surface structures for laser-driven particle acceleration has potential to significantly boost the particle and radiation energies because of enhanced laser absorption. We investigate, via experiment and particle-in-cell simulations, the impact of micron-scale surface-structured targets on the spectrum of electrons and protons accelerated by a picosecond laser pulse at relativistic intensity. Our results show that, compared with flat-surfaced targets, structures on this scale give rise to a significant enhancement in particle and radiation emission over a wide range of laser-target interaction parameters. This is due to the longer plasma scale length when using micro-structures on the target front surface. We do not observe an increase in the proton cutoff energy with our microstructured targets, and this is due to the large volume of the relief.

Original language	English
Journal	Laser and Particle Beams
Early online date	23 Apr 2019
DOIs	https://doi.org/10.1017/S0263034619000351
Publication status	E-pub ahead of print - 23 Apr 2019

Bibliographical note

© Cambridge University Press 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

Keywords

Laser-plasma interaction
plasma line emission
structured target

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10.1017/S0263034619000351

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© Cambridge University Press 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.
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Cite this

Sedov, M. V., Faenov, A. Y., Andreev, A. A., Skobelev, I. Y., Ryazantsev, S. N., Pikuz, T. A., Durey, P., Doehl, L., Farley, D., Baird, C. D., Lancaster, K. L., Murphy, C. D., Booth, N., Spindloe, C., Platonov, K. Y., Mckenna, P., Kodama, R., Woolsey, N., & Pikuz, S. A. (2019). Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses. Laser and Particle Beams. Advance online publication. https://doi.org/10.1017/S0263034619000351

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title = "Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses",

abstract = "The use of targets with surface structures for laser-driven particle acceleration has potential to significantly boost the particle and radiation energies because of enhanced laser absorption. We investigate, via experiment and particle-in-cell simulations, the impact of micron-scale surface-structured targets on the spectrum of electrons and protons accelerated by a picosecond laser pulse at relativistic intensity. Our results show that, compared with flat-surfaced targets, structures on this scale give rise to a significant enhancement in particle and radiation emission over a wide range of laser-target interaction parameters. This is due to the longer plasma scale length when using micro-structures on the target front surface. We do not observe an increase in the proton cutoff energy with our microstructured targets, and this is due to the large volume of the relief.",

keywords = "Laser-plasma interaction, plasma line emission, structured target",

author = "Sedov, {M. V.} and Faenov, {A. Ya} and Andreev, {A. A.} and Skobelev, {I. Yu} and Ryazantsev, {S. N.} and Pikuz, {T. A.} and P. Durey and L. Doehl and D. Farley and Baird, {C. D.} and Lancaster, {K. L.} and Murphy, {C. D.} and N. Booth and C. Spindloe and Platonov, {K. Yu} and P. Mckenna and R. Kodama and N. Woolsey and Pikuz, {S. A.}",

note = "{\textcopyright} Cambridge University Press 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher{\textquoteright}s self-archiving policy. Further copying may not be permitted; contact the publisher for details.",

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Sedov, MV, Faenov, AY, Andreev, AA, Skobelev, IY, Ryazantsev, SN, Pikuz, TA, Durey, P, Doehl, L, Farley, D, Baird, CD, Lancaster, KL , Murphy, CD, Booth, N, Spindloe, C, Platonov, KY, Mckenna, P, Kodama, R, Woolsey, N & Pikuz, SA 2019, 'Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses', Laser and Particle Beams. https://doi.org/10.1017/S0263034619000351

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T1 - Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses

AU - Sedov, M. V.

AU - Faenov, A. Ya

AU - Andreev, A. A.

AU - Skobelev, I. Yu

AU - Ryazantsev, S. N.

AU - Pikuz, T. A.

AU - Durey, P.

AU - Doehl, L.

AU - Farley, D.

AU - Baird, C. D.

AU - Lancaster, K. L.

AU - Murphy, C. D.

AU - Booth, N.

AU - Spindloe, C.

AU - Platonov, K. Yu

AU - Mckenna, P.

AU - Kodama, R.

AU - Woolsey, N.

AU - Pikuz, S. A.

N1 - © Cambridge University Press 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

PY - 2019/4/23

Y1 - 2019/4/23

N2 - The use of targets with surface structures for laser-driven particle acceleration has potential to significantly boost the particle and radiation energies because of enhanced laser absorption. We investigate, via experiment and particle-in-cell simulations, the impact of micron-scale surface-structured targets on the spectrum of electrons and protons accelerated by a picosecond laser pulse at relativistic intensity. Our results show that, compared with flat-surfaced targets, structures on this scale give rise to a significant enhancement in particle and radiation emission over a wide range of laser-target interaction parameters. This is due to the longer plasma scale length when using micro-structures on the target front surface. We do not observe an increase in the proton cutoff energy with our microstructured targets, and this is due to the large volume of the relief.

AB - The use of targets with surface structures for laser-driven particle acceleration has potential to significantly boost the particle and radiation energies because of enhanced laser absorption. We investigate, via experiment and particle-in-cell simulations, the impact of micron-scale surface-structured targets on the spectrum of electrons and protons accelerated by a picosecond laser pulse at relativistic intensity. Our results show that, compared with flat-surfaced targets, structures on this scale give rise to a significant enhancement in particle and radiation emission over a wide range of laser-target interaction parameters. This is due to the longer plasma scale length when using micro-structures on the target front surface. We do not observe an increase in the proton cutoff energy with our microstructured targets, and this is due to the large volume of the relief.

KW - Laser-plasma interaction

KW - plasma line emission

KW - structured target

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DO - 10.1017/S0263034619000351

M3 - Article

AN - SCOPUS:85064909721

SN - 0263-0346

JO - Laser and Particle Beams

JF - Laser and Particle Beams

ER -

Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Physics of Ignition: Collaboration with the National Ignition Facility: Diagnosing hot-spot mix via X-ray spectroscopy

Constraining fundamental fast electron parameters

Cite this

Features of the generation of fast particles from microstructured targets irradiated by high intensity, picosecond laser pulses

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Projects

Physics of Ignition: Collaboration with the National Ignition Facility: Diagnosing hot-spot mix via X-ray spectroscopy

Constraining fundamental fast electron parameters

Cite this