Mixed-field orientation of a thermal ensemble of linear polar molecules Omiste, Juan J. González Férez, María Rosario Oriented molecules Schrodinger-equation Reactive scattering Alignment 21st International Conference on Laser Spectroscopy (ICOLS) 2013 We present a theoretical study of the impact of an electrostatic field combined with nonresonant linearly polarized laser pulses on the rotational dynamics of a thermal ensemble of linear molecules. We solve the time-dependent Schrödinger equation within the rigid rotor approximation for several rotational states. Using the carbonyl sulfide (OCS) molecule as a prototype, the mixed- field orientation of a thermal sample is analyzed in detail for experimentally accessible static field strengths and laser pulses. We demonstrate that for a characteristic fi eld con guration used in current mixed- field orientation experiments, a signi cant orientation is obtained for rotational temperatures below 0.7 K as well as using stronger dc fi elds. 2014-06-12T08:30:34Z 2014-06-12T08:30:34Z 2013 conference output Omiste, J.J.; González-Férez, R. Mixed-field orientation of a thermal ensemble of linear polar molecules. Journal of Physics: Conference Series, 467: 012005 (2013). [http://hdl.handle.net/10481/32229] 1742-6588 http://hdl.handle.net/10481/32229 10.1088/1742-6596/467/1/012005 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ open access Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License IOP Publishing