Holographic diffraction gratings using polymer-dispersed ferroelectric liquid crystals.
By controlling the morphology of holographic polymer-dispersed ferroelectric liquid crystals (FLCs), highly aligned FLC domains are obtained for diffractive optical applications. Rapid, thresholdless switching is observed for various grating pitch sizes between approximately 3 and approximately 12 microm. A simple phenomenological model is presented encompassing a distribution of domain sizes and an effective field that stabilizes the FLC domains to reflect the observed thresholdless switching and optical behavior.
Woltman
Scott J
SJ
Department of Physics, Division of Engineering, Brown University, Providence, Rhode Island 02912, USA.
Eakin
James N
JN
Crawford
Gregory P
GP
Zumer
Slobodan
S