Numerical modeling of short electromagnetic pulse propagation in nonequilibrium and nonstationary plasma media

Bogatskaya, A. V.; Волкова, Е. А.; Popov, A. M.

doi:10.1088/1555-6611/ab1f03

Cited by 11 publications

(7 citation statements)

References 33 publications

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“…[18,19] A model based on the geometry of the target holder could also contribute to deepen understanding of EMP generation. [19] In addition, EMP propagation in laser-induced plasma was also studied, [20][21][22] which is of importance to interpreting the EMP generating process.…”

Section: Introductionmentioning

confidence: 99%

Analysis of electromagnetic pulses generated from ultrashort laser irradiation of solid targets at CLAPA

Xu¹,

Li²,

Xia³

et al. 2022

Chinese Phys. B

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Electromagnetic pulses (EMPs) produced by the interaction of a TW femtosecond laser with solid targets at the Compact Laser Plasma Accelerator (CLAPA) are measured and interpreted. The statistical results confirm that the intensities of the EMPs are closely related to both target material and thickness. The signal of the titanium target is more abundant than that of the copper target with the same thickness, and the intensity of EMP is positively correlated with the target thickness for aluminium foil. With the boosted EMP radiations, the energy of accelerated protons is also simultaneously enhanced. In addition, EMPs emitted from the front of the target exceed those from the rear, which are also pertinent to the specific target position. The resonant waveforms in the target chamber are analyzed using the fast Fourier transform, and the local resonance and the attenuation lead to changes of the frequency spectra of EMPs with variation of detecting positions, which is well supported by the modeling results. The findings are beneficial to gaining insight into the mechanism of EMP propagation in a typical target chamber and providing more information for EMP shielding design.

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Section: Introductionmentioning

confidence: 99%

Analysis of electromagnetic pulses generated from ultrashort laser irradiation of solid targets at CLAPA

Xu¹,

Li²,

Xia³

et al. 2022

Chinese Phys. B

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“…The last circumstance is valid with high accuracy as we are interested in rather short THz pulses amplification. So, the temporal dynamics of EVDF in plasma formed by KrF laser pulse is approximated by the following expression [35]: with the diffusion width of initial photoelectron peak determined by:…”

Section: Resultsmentioning

confidence: 99%

“…The method for numerical solution of the wave equation ( 17) is discussed in [35]. The step of integrating (17) over time was taken Δt = 4.8834 × 10 −16 s. The spatial discretization step was Δz = cΔt ≈ 1.465 × 10 −5 cm.…”

Section: Amplification Of Seed Thz Pulse In Nonequilibrium Xenon Plas...mentioning

confidence: 99%

The role of plasma kinetics in the process of THz pulses generation and amplification

Bogatskaya

Gnezdovskaia

Волкова

et al. 2020

Plasma Sources Sci. Technol.

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The article discusses the process of generation and amplification of short THz pulses taking into account kinetic properties of plasma formed in the process of tunnel ionization by the two-color laser femtosecond pulse, namely velocity distribution of plasma electrons. Analytical and numerical solutions of the dispersive equation for longitudinal oscillations show that the accounting of plasma kinetics can lead to essential variation of the spectral characteristics of a generated pulse thus leading to a change in signal duration. Subsequent additional amplification of the formed seed THz pulse during the propagation through the nonequilibrium Xe plasma channel formed by an intense femtosecond KrF laser pulse is analyzed.

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“…The tunnel communication channel method remains one of the most promising solutions [ 12 ]. The implementation consists of covering of the antenna surface with a dielectric layer that will act as a resonator (potential well in terms of quantum-optical analogy) and provide effective tunneling of the signal through the plasma for input radiation frequencies coinciding with the eigen resonator frequencies [ 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Issues with Modeling a Tunnel Communication Channel through a Plasma Sheath

Bogatskaya

Schegolev

Klenov

et al. 2022

Sensors

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We consider two of the most relevant problems that arise when modeling the properties of a tunnel radio communication channel through a plasma layer. First, we studied the case of the oblique incidence of electromagnetic waves on a layer of ionized gas for two wave polarizations. The resonator parameters that provide signal reception at a wide solid angle were found. We also took into account the unavoidable presence of a protective layer between the plasma and the resonator, as well as the conducting elements of the antenna system in the dielectric itself. This provides the first complete simulation for a tunnel communication channel. Noise immunity and communication range studies were conducted for a prospective spacecraft radio line.

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Numerical modeling of short electromagnetic pulse propagation in nonequilibrium and nonstationary plasma media

Cited by 11 publications

References 33 publications

Analysis of electromagnetic pulses generated from ultrashort laser irradiation of solid targets at CLAPA

Analysis of electromagnetic pulses generated from ultrashort laser irradiation of solid targets at CLAPA

The role of plasma kinetics in the process of THz pulses generation and amplification

Issues with Modeling a Tunnel Communication Channel through a Plasma Sheath

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