Abstract
We unveil the physical origin of the peculiar spatio-temporal instability phenomena observed in liquid crystals subject to the influence of a light wave of ordinary polarization. Our study shows that due to non-adiabatic propagation of a light beam in an anisotropic medium, the light polarization and, hence, the torque acting on the orientation of a nematic liquid crystal (NLC) is asymmetrically modulated over the NLC layer. The spatial pattern of the NLC reorientation that is formed across the NLC-layer under the influence of such a torque may become unstable in time due to competing interaction of symmetric and antisymmetric modes. The obtained results allow evaluation of the threshold intensity and the range of the light incidence angles where the longitudinal spatio-temporal instability is possible.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
