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Quasi-phasematching of harmonic generation via multimode beating in waveguides

B. Dromey·M. Zepf·M. Landreman·S. M. Hooker
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Abstract

A new scheme for quasi-phasematching high harmonic generation (HHG) in gases is proposed. In this, the rapid variation of the axial intensity resulting from excitation of more than one mode of a waveguide is used to achieve quasi phasematching. Numerical modeling demonstrates enhancement of the harmonic signal over that achieved for a single coherence length by factors >10^4.

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B. Dromey, M. Zepf, M. Landreman, S. M. Hooker. 2007-02-14. Quasi-phasematching of harmonic generation via multimode beating in waveguides. https://doi.org/10.1364/oe.15.007894

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