Figure 2
From: Bidirectional rotation control of a carbon fiber in nematic liquid crystal using AC electric field
(a) Optical microscope image of the symmetric CF at the ground state. It is aligned parallel to the rubbing direction in the nematic phase. (b) Image of CF when an electric field of 0.080Â V/\(\mathrm{\upmu m}\) was applied. LC is in the isotropic phase. The CF is aligned parallel to the electric field. (c) Image of the CF observed in crossed polarizers through polarizing optical microscope. To obtain the image when it is dark, the rubbing and director directions coincide with the polarizer direction. We modified brightness and contrast to clarify the image. Although small dust particles were attached to the CFs, it seems that they hardly affect the response of the CF (d) The image of the irregular shaped CF. It is not aligned parallel to the rubbing and director direction.
