Half-cycle cutoff in near-threshold harmonic generation
A half-cycle cutoff is identified in the harmonic generation spectra near the ionization potential for short driving laser pulses. Unlike the half-cycle cutoff in the high-energy region, the newly found low-energy cutoff is strongly affected by the ionic potential and multiple return trajectories. W...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
IOP Publishing
2015-01-01
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Series: | New Journal of Physics |
Subjects: | |
Online Access: | https://doi.org/10.1088/1367-2630/17/12/123020 |