| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1496699 | Optical Materials | 2007 | 7 Pages |
Abstract
The influence of an external electric field or temperature on holographic scattering from holographic polymer-dispersed liquid crystals (H-PDLCs) was investigated experimentally. The auto-generated parasitic gratings are affected by an externally applied electric field in a similar manner as the elementary grating. We find that the threshold voltage, switching-on and -off times are independent on the grating vector. On the contrary, the suppression level of the refractive-index modulation is proportional to the spatial frequency. Heating of the sample reduces the strength of parasitic gratings analogously to the case of an external electric field.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
M.A. Ellabban, I. Drevenšek-Olenik, M. Fally, H. Uršič,