Molecular tunneling ionization of the carbonyl sulfide molecule by double-frequency phase-controlled laser fields

We have investigated the orientation-selective molecular tunneling ionization of carbonyl sulfide (OCS) molecules induced by linearly polarized double-frequency phase-controlled laser fields consisting of a fundamental and a second-harmonic light with a pulse duration of 130 fs and an intensity of 5 \ifmmode\times\else\texttimes\fi{} 10{}^{13}W/cm{}^{2} We performed simultaneous measurements using gas mixtures of OCS and carbon monoxide to...