100-kT magnetic field generation using paisley targets by femtosecond laser–plasma interactions

A target using a paisley pattern generates 100-kT-level magnetic fields. Laser irradiation induces local charge separation on the target, which creates surface currents along the concave surface, generating a magnetic field. For a laser intensity of 10 21   W   cm − 2, the target generates a 150-kT...

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Bibliographic Details
Published in:Applied physics letters 2022-03, Vol.120 (13)
Main Authors: Zosa, M.-A. H., Gu, Y. J., Murakami, M.
Format: Article
Language:English
Subjects:
Applied physics
Lasers
Magnetic fields
Magnetism
Plasma interactions
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Summary:A target using a paisley pattern generates 100-kT-level magnetic fields. Laser irradiation induces local charge separation on the target, which creates surface currents along the concave surface, generating a magnetic field. For a laser intensity of 10 21   W   cm − 2, the target generates a 150-kT magnetic field. We developed a simple model to describe the magnetic field as a function of the laser intensity and target radius. A double paisley configuration extends the lifetime of the magnetic field to the picosecond scale. The paisley design generates comparable results even if it is simplified. Thus, it is a robust and modular target suitable for magnetic field applications such as 100-kT magnetic field generation and magnetic reconnection.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0081115