I. Janossy, MOLECULAR INTERPRETATION OF THE ABSORPTION-INDUCED OPTICAL REORIENTATION OF NEMATIC LIQUID-CRYSTALS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 49(4), 1994, pp. 2957-2963
A molecular mechanism is proposed to explain the anomalous optical reo
rientation observed in nematic guest-host systems. According to the mo
del, light-induced reorientation in these systems is due to the intera
ction between the excited dye molecules and the nematic host. The mode
l justifies a phenomenological description given earlier. Numerical re
sults, based on the present model, are in agreement with the observed
order of magnitude of the effect.