Nonlinear dynamics of laser-generated ion-plasma gratings: a unified description

0521637 - FZÚ 2020 RIV US eng J - Článek v odborném periodiku
Peng, H. - Riconda, C. - Grech, M. - Su, J.-Q. - Weber, Stefan A.
Nonlinear dynamics of laser-generated ion-plasma gratings: a unified description.
Physical Review E. Roč. 100, č. 6 (2019), s. 1-5, č. článku 061201. ISSN 2470-0045. E-ISSN 2470-0053
Grant CEP: GA MŠMT LQ1606
Institucionální podpora: RVO:68378271
Klíčová slova: stimulated scattering processes * amplification * pulses
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 2.296, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1103/physreve.100.061201

Laser-generated plasma gratings are dynamic optical elements for the manipulation of coherent light at high intensities, beyond the damage threshold of solid-state-based materials. Their formation, evolution, and final collapse require a detailed understanding. In this paper, we present a model to explain the nonlinear dynamics of high-amplitude plasma gratings in the spatially periodic ponderomotive potential generated by two identical counterpropagating lasers. Both fluid and kinetic aspects of the grating dynamics are analyzed. It is shown that the adiabatic electron compression plays a crucial role as the electron pressure may reflect the ions from the grating and induce the grating to break in an X-type manner.

Trvalý link: http://hdl.handle.net/11104/0306229