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arXiv · 2202.00193

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

Myles Allen Zosa·Yan-Jun Gu·Masakatsu Murakami
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Abstract

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 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.

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Myles Allen Zosa, Yan-Jun Gu, Masakatsu Murakami. 2022-02-01. 100-kT Magnetic field generation using paisley targets by femtosecond laser-plasma interactions. https://doi.org/10.1063/5.0081115

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