Characterization of the diffraction efficiency of polymer-liquid-crystal-polymer-slices gratings at all incidence angles.
Recently, a novel holographic diffraction grating made of polymer slices alternated to homogeneous films of nematic liquid crystal (POLICRYPS) was realized. We study the optical performance of the POLICRYPS gratings by both numerical simulations and experiments. Characterization of the grating at normal and conical reading mount are performed. The diffraction efficiency depends strongly on the angles of incidence. Besides, the characterization of the diffraction efficiency at Bragg angle incidence is studied. A uniform high diffraction efficiency is achieved when the incident wave satisfies the Bragg condition.
Xu
Man
M
Optics Research Group, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, the Netherlands. m.xu@tudelft.nl
De Sio
Luciano
L
Caputo
Roberto
R
Umeton
Cesare P
CP
Wachters
Arthur J H
AJ
de Boer
Dick K G
DK
Urbach
H Paul
HP
D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D050866:Liquid Crystals / Q000737:chemistry*; D008422:Materials Testing; D008962:Models, Theoretical; D011108:Polymers / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation*
D011108:Polymers