Plasma high-order-harmonic generation from ultraintense laser pulses.
basic_science · Level V
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- Record sourced from PubMed, PMID 28618496.
- Also identified by DOI 10.1103/PhysRevE.95.051201.
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Abstract
Plasma high-order-harmonic generation from an extremely intense short-pulse laser is explored by including the effects of ion motion, electron-ion collisions, and radiation reaction force in the plasma dynamics. The laser radiation pressure induces plasma ion motion through the hole-boring effect, resulting in frequency shifting and widening of the harmonic spectra. The classical radiation reaction force slightly mitigates the frequency broadening caused by the ion motion. Based on the results and physical considerations, parameter maps highlighting the optimum regions for generating a single intense attosecond pulse and coherent XUV radiation are presented.