DOAJ Open Access 2023

Laser–Plasma Wake Velocity Control by Multi-Mode Beatwave Excitation in a Channel

Alexander Pukhov Nikolay E. Andreev Anton A. Golovanov Ivan I. Artemenko Igor Yu Kostyukov

Abstrak

The phase velocity of a laser-driven wakefield can be efficiently controlled in a plasma channel. A beatwave of two long laser pulses is used. The frequency difference between these two laser pulses equals the local plasma frequency, so that the slow resonant excitation of the plasma wave is possible. Because the driver energy is spread over many plasma periods, the interference pattern can run with an arbitrary velocity along the channel and generate the wakefield with the same phase velocity. This velocity is defined by the channel radius and the structure of laser transverse modes excited in the channel. The wake velocity can be matched exactly to the witness velocity. This can be the vacuum speed of light for ultra-relativistic witnesses, or subluminal velocities for low-energy, weakly relativistic witnesses such as muons.

Topik & Kata Kunci

Physics Plasma physics. Ionized gases

Penulis (5)

Alexander Pukhov

Nikolay E. Andreev

Anton A. Golovanov

Ivan I. Artemenko

Igor Yu Kostyukov

Format Sitasi

APA MLA BibTeX

Pukhov, A., Andreev, N.E., Golovanov, A.A., Artemenko, I.I., Kostyukov, I.Y. (2023). Laser–Plasma Wake Velocity Control by Multi-Mode Beatwave Excitation in a Channel. https://doi.org/10.3390/plasma6010003

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Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.3390/plasma6010003
Akses: Open Access ✓