We report on a combined experimental and numerical study of photoelectron circular dichroism (PECD) induced by intense few-cycle laser pulses, using methyloxirane as the molecular example. Our experiments reveal a remarkably pronounced sensitivity of the PECD strength of double-ionization on the carrier-envelope phase (CEP) of the laser pulses. By comparison to the simulations, which reproduce the measured CEP-dependence for specific orientations of the molecules in the lab frame, we attribute the origin of the observed CEP-dependence of PECD to the CEP-induced modulation of ionization from different areas of the wave functions of three dominant orbitals.
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Project title:
Intensive, verstimmbare, schmalbandige THz Quellen: I 5590-N (FWF Fonds zur Förderung der wissenschaftlichen Forschung (FWF)) Laserpuls-induzierte molekulare Bindungsbildungs-Reaktionen: P 28475-N27 (FWF Fonds zur Förderung der wissenschaftlichen Forschung (FWF))