Abstract
Abstract Field applied molecular dynamics (FMD) computer simulation is used to investigate the optical Stark effect in a liquid ensemble of chiral molecules, using left and right circularly polarised laser radiation, interacting with each molecule through the appropriate torque. A novel orientational anisotropy develops under the influence of this torque, an anisotropy which indicates bi-axial birefringence. The latter is the same for right and left circularly polarised laser components, even when a contribution is included from the imaginary part of molecular polarisability. The torque used in the FMD simulation is independent of the phase of the laser implying that the orientational birefringence persists at all frequencies.
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