Laser-driven ultrafast field propagation on solid surfaces

K. Quinn; P.A. Wilson; C.A. Cecchetti; B. Ramakrishna; L. Romagnani; G. Sarri; L. Lancia; J. Fuchs; P. Gallegos; D.C. Carroll; M.N. Quinn; X.H. Yuan; P. McKenna

doi:10.1103/PhysRevLett.102.194801

Laser-driven ultrafast field propagation on solid surfaces

K. Quinn, P.A. Wilson, C.A. Cecchetti, B. Ramakrishna, L. Romagnani, G. Sarri, L. Lancia, J. Fuchs, P. Gallegos, D.C. Carroll, M.N. Quinn, X.H. Yuan, P. McKenna

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

103 Citations (Scopus)

Abstract

The interaction of a 3×1019 W/cm2 laser pulse with a metallic wire has been investigated using proton radiography. The pulse is observed to drive the propagation of a highly transient field along the wire at the speed of light. Within a temporal window of 20 ps, the current driven by this field rises to its peak magnitude ∼104 A before decaying to below measurable levels. Supported by particle-in-cell simulation results and simple theoretical reasoning, the transient field measured is interpreted as a charge-neutralizing disturbance propagated away from the interaction region as a result of the permanent loss of a small fraction of the laser-accelerated hot electron population to vacuum.

Original language	English
Pages (from-to)	194801-1-194801-4
Journal	Physical Review Letters
Volume	102
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.102.194801
Publication status	Published - 15 May 2009

Keywords

electrons
targets
plasmas

Access to Document

10.1103/PhysRevLett.102.194801

Cite this

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title = "Laser-driven ultrafast field propagation on solid surfaces",

abstract = "The interaction of a 3×1019 W/cm2 laser pulse with a metallic wire has been investigated using proton radiography. The pulse is observed to drive the propagation of a highly transient field along the wire at the speed of light. Within a temporal window of 20 ps, the current driven by this field rises to its peak magnitude ∼104 A before decaying to below measurable levels. Supported by particle-in-cell simulation results and simple theoretical reasoning, the transient field measured is interpreted as a charge-neutralizing disturbance propagated away from the interaction region as a result of the permanent loss of a small fraction of the laser-accelerated hot electron population to vacuum.",

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doi = "10.1103/PhysRevLett.102.194801",

language = "English",

volume = "102",

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T1 - Laser-driven ultrafast field propagation on solid surfaces

AU - Quinn, K.

AU - Wilson, P.A.

AU - Cecchetti, C.A.

AU - Ramakrishna, B.

AU - Romagnani, L.

AU - Sarri, G.

AU - Lancia, L.

AU - Fuchs, J.

AU - Gallegos, P.

AU - Carroll, D.C.

AU - Quinn, M.N.

AU - Yuan, X.H.

AU - McKenna, P.

N1 - Strathprints' policy is to record up to 8 authors per publication, plus any additional authors based at the University of Strathclyde. More authors may be listed on the official publication than appear in the Strathprints' record.

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N2 - The interaction of a 3×1019 W/cm2 laser pulse with a metallic wire has been investigated using proton radiography. The pulse is observed to drive the propagation of a highly transient field along the wire at the speed of light. Within a temporal window of 20 ps, the current driven by this field rises to its peak magnitude ∼104 A before decaying to below measurable levels. Supported by particle-in-cell simulation results and simple theoretical reasoning, the transient field measured is interpreted as a charge-neutralizing disturbance propagated away from the interaction region as a result of the permanent loss of a small fraction of the laser-accelerated hot electron population to vacuum.

AB - The interaction of a 3×1019 W/cm2 laser pulse with a metallic wire has been investigated using proton radiography. The pulse is observed to drive the propagation of a highly transient field along the wire at the speed of light. Within a temporal window of 20 ps, the current driven by this field rises to its peak magnitude ∼104 A before decaying to below measurable levels. Supported by particle-in-cell simulation results and simple theoretical reasoning, the transient field measured is interpreted as a charge-neutralizing disturbance propagated away from the interaction region as a result of the permanent loss of a small fraction of the laser-accelerated hot electron population to vacuum.

KW - electrons

KW - targets

KW - plasmas

UR - http://dx.doi.org/10.1103/PhysRevLett.102.194801

U2 - 10.1103/PhysRevLett.102.194801

DO - 10.1103/PhysRevLett.102.194801

M3 - Article

SN - 0031-9007

VL - 102

SP - 194801-1-194801-4

JO - Physical Review Letters

JF - Physical Review Letters

IS - 19

ER -

Laser-driven ultrafast field propagation on solid surfaces

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Laser-driven ultrafast field propagation on solid surfaces

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KEY PHYSICS FOR INERTIAL CONFINEMENT DIAGNOSED BY ION EMISSION

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