Suppression of Electromagnetic Pulses from Laser-Target Interactions by Strong Magnetic Fields
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866915810884190208 |
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| author | Heuer, P. V. Peebles, J. L. Davies, J. R. Barnak, D. H. Stanley, B. Pelepchan, N. Cufari, M. Frenje, J. A. Niemann, C. Rongione, N. A. Constantin, C. Cisneros, E. Pribyl, P. Sio, H. Chen, H. |
| author_facet | Heuer, P. V. Peebles, J. L. Davies, J. R. Barnak, D. H. Stanley, B. Pelepchan, N. Cufari, M. Frenje, J. A. Niemann, C. Rongione, N. A. Constantin, C. Cisneros, E. Pribyl, P. Sio, H. Chen, H. |
| contents | Laser-target interactions generate intense electromagnetic pulses (EMP) that can interfere with measurements and damage equipment. In this paper we show that applying a magnetic field to nanosecond pulse laser-target interactions decreases the magnitude of EMP. We demonstrate this effect in two experiments with different geometries (spherical vs. planar), laser intensities (${\sim}10^{13}$ vs. ${\sim} 10^{15}$~W/cm$^2$) and applied field strength (12~T vs. 0.1~T) that both observed suppression of EMP in the ${\sim} 1$~GHz band (by factors of $0.65\times$ and $0.32\times$ respectively). We then observe the opposite effect at high intensities with a picosecond pulse: for planar experiments with laser intensities ${\sim}10^{19}$~W/cm$^2$ and magnetic fields of 6--10~T, the magnitude of EMP is increased by a factor of $1.75\times$. These results provide a benchmark for models of EMP generation, but suggest that magnetic fields are not a viable solution for mitigating EMP on the high intensity laser facilities where it is most damaging. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_18619 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Suppression of Electromagnetic Pulses from Laser-Target Interactions by Strong Magnetic Fields Heuer, P. V. Peebles, J. L. Davies, J. R. Barnak, D. H. Stanley, B. Pelepchan, N. Cufari, M. Frenje, J. A. Niemann, C. Rongione, N. A. Constantin, C. Cisneros, E. Pribyl, P. Sio, H. Chen, H. Plasma Physics Laser-target interactions generate intense electromagnetic pulses (EMP) that can interfere with measurements and damage equipment. In this paper we show that applying a magnetic field to nanosecond pulse laser-target interactions decreases the magnitude of EMP. We demonstrate this effect in two experiments with different geometries (spherical vs. planar), laser intensities (${\sim}10^{13}$ vs. ${\sim} 10^{15}$~W/cm$^2$) and applied field strength (12~T vs. 0.1~T) that both observed suppression of EMP in the ${\sim} 1$~GHz band (by factors of $0.65\times$ and $0.32\times$ respectively). We then observe the opposite effect at high intensities with a picosecond pulse: for planar experiments with laser intensities ${\sim}10^{19}$~W/cm$^2$ and magnetic fields of 6--10~T, the magnitude of EMP is increased by a factor of $1.75\times$. These results provide a benchmark for models of EMP generation, but suggest that magnetic fields are not a viable solution for mitigating EMP on the high intensity laser facilities where it is most damaging. |
| title | Suppression of Electromagnetic Pulses from Laser-Target Interactions by Strong Magnetic Fields |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2602.18619 |