Quantum path interference in the wavelength dependence of high-harmonic generation

We investigate the dependence of the intensity of radiation due to high-harmonic generation (HHG) as a function of the wavelength of the fundamental driver field. Superimposed on a smooth power-law dependence observed previously we find surprisingly strong and rapid fluctuations on a fine wavelength...

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Bibliographic Details
Published inarXiv.org
Main Authors Schiessl, K, Ishikawa, K L, Persson, E, Burgdörfer, J
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 15.09.2007
Subjects
Dependence
Harmonic generations
Physics - Atomic Physics
Physics - Optics
Variations
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Summary:We investigate the dependence of the intensity of radiation due to high-harmonic generation (HHG) as a function of the wavelength of the fundamental driver field. Superimposed on a smooth power-law dependence observed previously we find surprisingly strong and rapid fluctuations on a fine wavelength scale. We identify the origin of these fluctuations in terms of quantum path interferences with up to five returning orbits significantly contributing.
ISSN:2331-8422
DOI:10.48550/arxiv.0709.2424