Record magnetic field generation by short-pulse laser-driven capacitor-coil targets

Lan Gao; Yang Zhang; Hantao Ji; Brandon K. Russell; Geoffrey Pomraning; Jesse Griff-McMahon; Sallee Klein; Carolyn Kuranz; Mingsheng Wei

doi:10.1063/5.0279265

Record magnetic field generation by short-pulse laser-driven capacitor-coil targets

Lan Gao
, Yang Zhang
, Hantao Ji
, Brandon K. Russell
, Geoffrey Pomraning
, Jesse Griff-McMahon
, Sallee Klein
, Carolyn Kuranz
, Mingsheng Wei

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

Abstract

Magnetic fields generated by capacitor-coil targets driven by intense short-pulse lasers have been characterized using ultrafast proton radiography. A 1-kJ, 15-ps laser at a center wavelength of 1053 nm irradiated the back plate of the capacitor with an intensity of ∼8.3 × 10¹⁸ W/cm², creating ultra large currents in the connecting coils. High-quality proton data obtained in the axial probing geometry show definitive signatures of magnetic field generation, allowing precision measurement of the field distribution and strength. The data show a coil current of 120 ± 10 kA producing 200 ± 20 Tesla magnetic fields at the coil center at 1.127 ns after the laser drive. This sets a record for magnetic field generation by the short-pulse-powered capacitor-coil targets.

Original language	English (US)
Article number	094101
Journal	Applied Physics Letters
Volume	127
Issue number	9
DOIs	https://doi.org/10.1063/5.0279265
State	Published - Sep 1 2025

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/5.0279265

Cite this

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title = "Record magnetic field generation by short-pulse laser-driven capacitor-coil targets",

abstract = "Magnetic fields generated by capacitor-coil targets driven by intense short-pulse lasers have been characterized using ultrafast proton radiography. A 1-kJ, 15-ps laser at a center wavelength of 1053 nm irradiated the back plate of the capacitor with an intensity of ∼8.3 × 1018 W/cm2, creating ultra large currents in the connecting coils. High-quality proton data obtained in the axial probing geometry show definitive signatures of magnetic field generation, allowing precision measurement of the field distribution and strength. The data show a coil current of 120 ± 10 kA producing 200 ± 20 Tesla magnetic fields at the coil center at 1.127 ns after the laser drive. This sets a record for magnetic field generation by the short-pulse-powered capacitor-coil targets.",

author = "Lan Gao and Yang Zhang and Hantao Ji and Russell, \{Brandon K.\} and Geoffrey Pomraning and Jesse Griff-McMahon and Sallee Klein and Carolyn Kuranz and Mingsheng Wei",

note = "Publisher Copyright: {\textcopyright} 2025 Author(s).",

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day = "1",

doi = "10.1063/5.0279265",

language = "English (US)",

volume = "127",

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TY - JOUR

T1 - Record magnetic field generation by short-pulse laser-driven capacitor-coil targets

AU - Gao, Lan

AU - Zhang, Yang

AU - Ji, Hantao

AU - Russell, Brandon K.

AU - Pomraning, Geoffrey

AU - Griff-McMahon, Jesse

AU - Klein, Sallee

AU - Kuranz, Carolyn

AU - Wei, Mingsheng

PY - 2025/9/1

Y1 - 2025/9/1

N2 - Magnetic fields generated by capacitor-coil targets driven by intense short-pulse lasers have been characterized using ultrafast proton radiography. A 1-kJ, 15-ps laser at a center wavelength of 1053 nm irradiated the back plate of the capacitor with an intensity of ∼8.3 × 1018 W/cm2, creating ultra large currents in the connecting coils. High-quality proton data obtained in the axial probing geometry show definitive signatures of magnetic field generation, allowing precision measurement of the field distribution and strength. The data show a coil current of 120 ± 10 kA producing 200 ± 20 Tesla magnetic fields at the coil center at 1.127 ns after the laser drive. This sets a record for magnetic field generation by the short-pulse-powered capacitor-coil targets.

AB - Magnetic fields generated by capacitor-coil targets driven by intense short-pulse lasers have been characterized using ultrafast proton radiography. A 1-kJ, 15-ps laser at a center wavelength of 1053 nm irradiated the back plate of the capacitor with an intensity of ∼8.3 × 1018 W/cm2, creating ultra large currents in the connecting coils. High-quality proton data obtained in the axial probing geometry show definitive signatures of magnetic field generation, allowing precision measurement of the field distribution and strength. The data show a coil current of 120 ± 10 kA producing 200 ± 20 Tesla magnetic fields at the coil center at 1.127 ns after the laser drive. This sets a record for magnetic field generation by the short-pulse-powered capacitor-coil targets.

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U2 - 10.1063/5.0279265

DO - 10.1063/5.0279265

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

M1 - 094101

ER -

Record magnetic field generation by short-pulse laser-driven capacitor-coil targets

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