Abstract
Two electrooptical effects in a system consisting of subwavelength aluminum gratings and a nematic liquid crystal (LC) layer are discussed. The aluminum gratings produced by a focused ion beam lithography act as interdigitated electrodes, which allows application of an electric field to a very thin fraction of LC layer contacting the grating. The first of the electrooptical effects is associated with an enhanced TE-polarized light transmission of the gratings and the surface induced twist deformation in the bulk of the LC layer, whereas the second one is caused by an influence of the electrically driven LC surface layer on the plasmonic resonance and the related dip of the TM-polarized grating transmission. Besides the different polarizations, the two effects have dramatically different response times. In the case of the plasmonic effect, the measured response time is found to be of 20 - 30 microseconds that is three orders of magnitude faster compared to the switching based on the surface induced twist effect.
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.
