title: Distributed feedback grating in liquid crystal waveguide: a novel approach.
abstract: We design a distributed feedback guided-wave device in liquid crystals, utilizing a simple geometry based on electro-optic molecular reorientation in uniaxial nematics. We numerically test the structure and demonstrate an effective Bragg reflector with voltage-tunable resonance.
authors.affiliation: Department of Electronic Engineering, University of Rome Sapienza, Rome, Italy.
authors.forename: Domenico
authors.initials: D
authors.lastname: Donisi
authors.forename: Rita
authors.initials: R
authors.lastname: Asquini
authors.forename: Antonio
authors.initials: A
authors.lastname: d'Alessandro
authors.forename: Gaetano
authors.initials: G
authors.lastname: Assanto