Matches in SemOpenAlex for { <https://semopenalex.org/work/W4225117622> ?p ?o ?g. }
- W4225117622 abstract "Relativistic interactions between ultraintense (>10^{18} W cm^{-2}) laser pulses and magnetized underdense plasmas are known to produce few-cycle Cerenkov wake radiation in the terahertz (THz) domain. Using multidimensional particle-in-cell simulations, we demonstrate the possibility of generating high-field (>100 GV m^{-1}) THz bursts from helium gas plasmas embedded in strong (>100 T) magnetic fields perpendicular to the laser path. We show that two criteria must be satisfied for efficient THz generation. First, the plasma density should be adjusted to the laser pulse duration for a strong resonant excitation of the electromagnetic plasma wake. Second, in order to mitigate the damping of the transverse wake component across the density gradients at the plasma exit, the ratio of the relativistic electron cyclotron and plasma frequencies must be chosen slightly above unity, but not too large, lest the wake be degraded. Such conditions lead the outgoing THz wave to surpass in amplitude the electrostatic wakefield induced in a similar, yet unmagnetized plasma." @default.
- W4225117622 created "2022-05-01" @default.
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- W4225117622 date "2022-04-29" @default.
- W4225117622 modified "2023-10-14" @default.
- W4225117622 title "Terahertz Pulse Generation by Strongly Magnetized, Laser-Created Plasmas" @default.
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- W4225117622 doi "https://doi.org/10.1103/physrevlett.128.174802" @default.
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