Nonadiabatic Self-Phase Matching of High Harmonic Generation
The nonadiabatic self modulation experienced by a few-cycle optical pulse propagating in a tunnel-ionizing gas can result in phase-matched high harmonic generation. Our calculations predict that the mechanism, which has been termed nonadiabatic self phase-matching, could make the generation of above keV x-ray harmonics possible for the first time.
KeywordsCoherence Length Spectral Intensity Harmonic Signal Harmonic Spectrum High Harmonic Generation
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