Abstract
Spontaneous transverse two-dimensional optical pattern formation has been observedwith dye-doped nematic liquid crystals in front of a single feedback mirror. It is shown thatphoto-thermally excited dispersive optical nonlinearities are responsible for the observed spatialinstabilities. The appearence and symmetry of the patterns obtained within finite diameter laserbeams in low aspect ratio regimes are discussed in terms of Bessel function modes. Furthermore,a comparision of self-focussing versus self-defocussing nonlinearities has been performed by usingordinary or extra-ordinary polarized input beams.
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.
