Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets

T. P. Frazer; R. Wilson; M. King; N. M. H. Butler; D. C. Carroll; M. J. Duff; A. Higginson; J. Jarrett; Z. E. Davidson; C. Armstrong; H. Liu; D. Neely; R. J. Gray; P. McKenna

doi:10.1103/PhysRevResearch.2.042015

Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets

T. P. Frazer, R. Wilson, M. King, N. M. H. Butler, D. C. Carroll, M. J. Duff, A. Higginson, J. Jarrett, Z. E. Davidson, C. Armstrong, H. Liu, D. Neely, R. J. Gray, P. McKenna

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Abstract

Laser-driven proton acceleration from ultrathin foils is investigated experimentally using F/3 and F/1 focusing. Higher energies achieved with F/3 are shown via simulations to result from self-focusing of the laser light in expanding foils that become relativistically transparent, enhancing the intensity. The increase in proton energy is maximised for an optimum initial target thickness, and thus expansion proﬁle, with no enhancement occurring for targets that remain opaque, or with F/1 focusing to close to the laser wavelength. The effect is shown to depend on the drive laser pulse duration.

Original language	English
Article number	042015
Number of pages	6
Journal	Physical Review Research
Volume	2
DOIs	https://doi.org/10.1103/PhysRevResearch.2.042015
Publication status	Published - 19 Oct 2020

Keywords

laser driven proton accelerator
ultrathin foils
pulse amplification

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10.1103/PhysRevResearch.2.042015Licence: CC BY 4.0

Frazer-etal-PRR-2020-Enhanced-laser-intensity-and-ion-acceleration-due-to-self-focusingAccepted author manuscript, 702 KB
Frazer-etal-PRR-2021-Enhanced-laser-intensity-and-ion-acceleration-due-to-self-focusingFinal published version, 578 KBLicence: CC BY 4.0

Nonlinear Optics and Dynamics of Relativistically Transparent Plasmas
McKenna, P. (Principal Investigator), Gray, R. (Co-investigator) & King, M. (Research Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/11/17 → 31/10/22
Project: Research
Harwell Imaging Partnership project | Frazer, Timothy
McKenna, P. (Principal Investigator), Sheng, Z.-M. (Co-investigator) & Frazer, T. (Research Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/17 → 17/02/22
Project: Research Studentship - Internally Allocated
Doctoral Training Partnership (DTP 2016-2017 University of Strathclyde) | Jarrett, Jonathan
McKenna, P. (Principal Investigator), King, M. (Co-investigator) & Jarrett, J. (Research Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/16 → 17/05/21
Project: Research Studentship - Internally Allocated

Data for: "Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets"
King, M. (Creator), McKenna, P. (Creator), Gray, R. (Creator), Frazer, T. (Creator) & Wilson, R. (Creator), University of Strathclyde, 14 Sept 2020
DOI: 10.15129/70e9031f-b6d9-45bd-af2a-0945aad9f8d6
Dataset

Cite this

Frazer, T. P., Wilson, R., King, M., Butler, N. M. H., Carroll, D. C., Duff, M. J., Higginson, A., Jarrett, J., Davidson, Z. E., Armstrong, C., Liu, H., Neely, D., Gray, R. J., & McKenna, P. (2020). Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets. Physical Review Research, 2, Article 042015. https://doi.org/10.1103/PhysRevResearch.2.042015

@article{93621e3a5ab64af492f90acd1600efdd,

title = "Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets",

abstract = "Laser-driven proton acceleration from ultrathin foils is investigated experimentally using F/3 and F/1 focusing. Higher energies achieved with F/3 are shown via simulations to result from self-focusing of the laser light in expanding foils that become relativistically transparent, enhancing the intensity. The increase in proton energy is maximised for an optimum initial target thickness, and thus expansion proﬁle, with no enhancement occurring for targets that remain opaque, or with F/1 focusing to close to the laser wavelength. The effect is shown to depend on the drive laser pulse duration.",

keywords = "laser driven proton accelerator, ultrathin foils, pulse amplification",

author = "Frazer, {T. P.} and R. Wilson and M. King and Butler, {N. M. H.} and Carroll, {D. C.} and Duff, {M. J.} and A. Higginson and J. Jarrett and Davidson, {Z. E.} and C. Armstrong and H. Liu and D. Neely and Gray, {R. J.} and P. McKenna",

year = "2020",

month = oct,

day = "19",

doi = "10.1103/PhysRevResearch.2.042015",

language = "English",

volume = "2",

journal = "Physical Review Research",

issn = "2643-1564",

publisher = "American Physical Society",

}

Frazer, TP, Wilson, R , King, M, Butler, NMH, Carroll, DC, Duff, MJ, Higginson, A, Jarrett, J, Davidson, ZE, Armstrong, C, Liu, H, Neely, D, Gray, RJ & McKenna, P 2020, 'Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets', Physical Review Research, vol. 2, 042015. https://doi.org/10.1103/PhysRevResearch.2.042015

TY - JOUR

T1 - Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets

AU - Frazer, T. P.

AU - Wilson, R.

AU - King, M.

AU - Butler, N. M. H.

AU - Carroll, D. C.

AU - Duff, M. J.

AU - Higginson, A.

AU - Jarrett, J.

AU - Davidson, Z. E.

AU - Armstrong, C.

AU - Liu, H.

AU - Neely, D.

AU - Gray, R. J.

AU - McKenna, P.

PY - 2020/10/19

Y1 - 2020/10/19

N2 - Laser-driven proton acceleration from ultrathin foils is investigated experimentally using F/3 and F/1 focusing. Higher energies achieved with F/3 are shown via simulations to result from self-focusing of the laser light in expanding foils that become relativistically transparent, enhancing the intensity. The increase in proton energy is maximised for an optimum initial target thickness, and thus expansion proﬁle, with no enhancement occurring for targets that remain opaque, or with F/1 focusing to close to the laser wavelength. The effect is shown to depend on the drive laser pulse duration.

AB - Laser-driven proton acceleration from ultrathin foils is investigated experimentally using F/3 and F/1 focusing. Higher energies achieved with F/3 are shown via simulations to result from self-focusing of the laser light in expanding foils that become relativistically transparent, enhancing the intensity. The increase in proton energy is maximised for an optimum initial target thickness, and thus expansion proﬁle, with no enhancement occurring for targets that remain opaque, or with F/1 focusing to close to the laser wavelength. The effect is shown to depend on the drive laser pulse duration.

KW - laser driven proton accelerator

KW - ultrathin foils

KW - pulse amplification

U2 - 10.1103/PhysRevResearch.2.042015

DO - 10.1103/PhysRevResearch.2.042015

M3 - Article

SN - 2643-1564

VL - 2

JO - Physical Review Research

JF - Physical Review Research

M1 - 042015

ER -

Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets

Abstract

Keywords

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Projects

Nonlinear Optics and Dynamics of Relativistically Transparent Plasmas

Harwell Imaging Partnership project | Frazer, Timothy

Doctoral Training Partnership (DTP 2016-2017 University of Strathclyde) | Jarrett, Jonathan

Datasets

Data for: "Enhanced laser intensity and ion acceleration due to self-focusing in relativistically transparent ultrathin targets"

Cite this