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arXiv:1803.04952 [physics.optics]AbstractReferencesReviewsResources

Strong-field control and enhancement of chiral response in bi-elliptical high-order harmonic generation: an analytical model

David Ayuso, Piero Decleva, Serguei Patchkovskii, Olga Smirnova

Published 2018-03-13Version 1

The generation of high-order harmonics in a medium of chiral molecules driven by intense bi-elliptical laser fields can lead to strong chiroptical response in a broad range of harmonic numbers and ellipticities [D. Ayuso et al, J. Phys. B 51, 06LT01 (2018)]. Here we present a comprehensive analytical model that can describe the most relevant features arising in the high-order harmonic spectra of chiral molecules driven by strong bi-elliptical fields, thus revealing the physical mechanisms behind. Using the chiral molecule propylene oxide as an example, we show that one can control and enhance the chiral response in bi-elliptical high-order harmonic generation by tailoring the driving field, in particular by tuning its frequency, intensity and ellipticity, exploiting a suppression mechanism of achiral background based on the linear Stark effect.

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