Abstract
In cholesteric liquid crystals with positive dielectric anisotropy an electric-field induced texture with unusual properties was observed. This texture appears after the reduction of the electric field during the transition from the homeotropic nematic state into the planar cholesteric one. The angular and the electric-field dependence of the spectral characteristics indicate that this state possesses diffractive grating properties. A voltage controlled color shift and a laser beam deflection are possible. An electric-field controlled cholesteric diffractive grating texture was also observed in polymer-dispersed films. In this case the electric-field induced transition into the homeotropic state is not necessary.
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.
