Simulation analysis of the HPM propagation along the femtosecond laser plasma double-line

Yang Liu; Shouye Lv; Jinzhou Li; Xiaobin Li; Yan He; Jiaming Shi

doi:10.1117/12.2666127

4 April 2023 Simulation analysis of the HPM propagation along the femtosecond laser plasma double-line

Yang Liu, Shouye Lv, Jinzhou Li, Xiaobin Li, Yan He, Jiaming Shi

Proceedings Volume 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications; 126173S (2023) https://doi.org/10.1117/12.2666127
Event: 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022, Hefei, China

Abstract

The transmission of High-Power Microwave (HPM) with a frequency of 1 GHz in a plasma double-line induced by intense femtosecond laser pulses is discussed by CST software. The influence of plasma electron density and collision frequency on HPM transmission performance is analyzed especially. The simulation results indicate that, the influence of plasma electron density on the transmission performance of HPM along the double-line is slight when the electron density is in the range of 10¹⁵ cm^-3 ~10¹⁷ cm^-3. It can also be obtained that the incident EM wave can propagate around the plasma double-line rather than in the over-dense plasma. We also discover that the attenuation value of the EM wave increases significantly with increasing the plasma collision frequency. Meanwhile, the attenuation value of the EM along the plasma transmission line can be calculated at approximately 0.94 dB/m and 1.56 dB/m when the plasma collision frequencies are 6×10⁹ Hz and 1.5×10¹¹ Hz, respectively. As can be seen, it is not necessary to increase the electron density of femtosecond laser plasma for achieving a high HPM transmission performance in the future applications.

Citation Download Citation

Yang Liu, Shouye Lv, Jinzhou Li, Xiaobin Li, Yan He, and Jiaming Shi "Simulation analysis of the HPM propagation along the femtosecond laser plasma double-line", Proc. SPIE 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 126173S (4 April 2023); https://doi.org/10.1117/12.2666127

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