Particle-in-cell simulation for frequency up-conversion of microwave to terahertz radiation by a relativistic hollow ionization front
Sign Up to like & getrecommendations! Published in 2019 at "AIP Advances"
DOI: 10.1063/1.5122790
Abstract: The interaction of an electromagnetic wave with a relativistic ionization front with frequency up-conversion has been demonstrated by the particle-in-cell (PIC) method. In the PIC simulation, the plasma ionization front is formed by using an… read more here.
Keywords: ionization front; pic; frequency conversion; ionization ... See more keywords
Numerical simulation of electromagnetic-wave interference induced by ionization-front of millimeter-wave discharge at subcritical conditions and application to discharge structure identification
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Applied Physics"
DOI: 10.1063/5.0225500
Abstract: A standing wave induced in front of the ionization-front of a millimeter-wave discharge was numerically investigated to develop an interferometric discharge structure identification method. The time-varying waveform of the standing-wave intensity obtained at a distant… read more here.
Keywords: structure; millimeter wave; discharge; discharge structure ... See more keywords
Lyman-α polarization from cosmological ionization fronts. Part I. Radiative transfer simulations
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2023/05/041
Abstract: In this paper, we present the formalism of simulating Lyman-α emission and polarization around reionization (z = 8) from a plane-parallel ionization front. We accomplish this by using a Monte Carlo method to simulate the… read more here.
Keywords: ionization; polarized intensity; erg cm2; polarization ... See more keywords
Frequency conversion, "superluminal" propagation, and compression of a powerful microwave pulse in propagating ionization front.
Sign Up to like & getrecommendations! Published in 2023 at "Physical review. E"
DOI: 10.1103/physreve.107.045203
Abstract: Frequency up-conversion (∼10%) and compression (almost twofold) of a powerful (≤250 MW) microwave pulse in the propagating ionization front produced by the pulse itself in a gas-filled waveguide, is investigated experimentally and analyzed theoretically. Pulse… read more here.
Keywords: microwave pulse; pulse propagating; frequency conversion; ionization front ... See more keywords
Photon Acceleration in a Flying Focus.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.124801
Abstract: A high-intensity laser pulse propagating through a medium triggers an ionization front that can accelerate and frequency upshift the photons of a second pulse. The maximum upshift is ultimately limited by the accelerated photons outpacing… read more here.
Keywords: flying focus; ionization front; pulse; acceleration flying ... See more keywords