High-resolution liquid-crystal phase grating formed by fringing fields from interdigitated electrodes.
We report the formation of thin anisotropic phase gratings in a nematic liquid-crystalline film by use of lateral (fringing) electric fields induced by transparent interdigitated electrodes. These gratings yield high diffraction efficiency (>30%) with a strong dependence on the readout beam incidence angle. In addition, the formation of a defect wall is observed that has a significant effect on the diffraction properties of the phase grating.
R G
RG
Lindquist
J H
JH
Kulick
G P
GP
Nordin
J M
JM
Jarem
S T
ST
Kowel
M
M
Friends
T M
TM
Leslie