Effects of polarization azimuth in dynamics of electrically assisted light-induced gliding of nematic liquid-crystal easy axis

Abstract

We experimentally study the reorientation dynamics of the nematic liquid crystal easy axis at photoaligned azo-dye films under the combined action of in-plane electric field and reorienting UV light linearly polarized at varying polarization azimuth, ${\varphi }_p$. In contrast to the case where the light polarization vector is parallel to the initial easy axis and ${\varphi }_p=0$, at ${\varphi }_p\ne 0$, the pronounced purely photoinduced reorientation is observed outside the interelectrode gaps. In the regions between electrodes with non-zero electric field, it is found that the dynamics of reorientation slows down with ${\varphi }_p$ and the sense of easy axis rotation is independent of the sign of ${\varphi }_p$.

revtex-4.1, 4 pages, 3 figures

References in corpus (3)

• Photoinduced ordering and anchoring properties of azo-dye films
• Kinetics of photoinduced ordering in azo-dye films: two-state and diffusion models
• Electrically assisted light-induced azimuthal gliding of the nematic liquid crystal easy axis on photoaligned substrates

Cited by in corpus (1)

• Photoinduced reordering in thin azo-dye films and light-induced reorientation dynamics of nematic liquid-crystal easy axis