Open AccessAttosecond-scale absorption at extreme intensities
Author(s) -
A. F. Savin,
A. J. Ross,
Maris Serzans,
R. M. G. M. Trines,
L. Ceurvorst,
Naren Ratan,
B. T. Spiers,
R. Bingham,
A. P. L. Robinson,
P. A. Norreys
Publication year - 2017
Publication title -
physics of plasmas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 160
eISSN - 1089-7674
pISSN - 1070-664X
DOI - 10.1063/1.4989798
Subject(s) - physics , attosecond , plasma , absorption (acoustics) , laser , ponderomotive force , scaling , atomic physics , scale (ratio) , dimension (graph theory) , computational physics , statistical physics , quantum mechanics , optics , ultrashort pulse , geometry , mathematics , pure mathematics
A novel non-ponderomotive absorption mechanism, originally presented by Baeva et al. [Phys. Plasmas 18, 056702 (2011)] in one dimension, is extended into higher dimensions for the first time. This absorption mechanism, the Zero Vector Potential (ZVP), is expected to dominate the interactions of ultra-intense laser pulses with critically over-dense plasmas such as those that are expected with the Extreme Light Infrastructure laser systems. It is shown that the mathematical form of the ZVP mechanism and its key scaling relations found by Baeva et al. in 1D are identically reproduced in higher dimensions. The two dimensional particle-in-cell simulations are then used to validate both the qualitative and quantitative predictions of the theory.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom