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arXiv · 0709.2424

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

K. Schiessl·K. L. Ishikawa·E. Persson·J. Burgdörfer
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Abstract

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.

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K. Schiessl, K. L. Ishikawa, E. Persson, J. Burgdörfer. 2007-09-15. Quantum path interference in the wavelength dependence of high-harmonic generation. https://doi.org/10.1103/physrevlett.99.253903

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