Molecular Orientation by Intense Single Cycle THz Pulses
  Intense single-cycle THz pulses resonantly interacting with molecular rotations are shown to induce significant field-free orientation under ambient conditions. We calculate and measure the angular distribution associated with THz-driven rotational motion and correlate the THz-induced orientation and alignment in an OCS gas sample. 
Sharly Fleischer, Yan Zhou, Robert W. Field, Keith A. Nelson
physics.chem-ph physics.optics