Full text loading...
Microphotographs of the textures near : The cell thicknesses are for (a) and (d); for (b) and (e); and for (c) and (f). Textures (d), (e), and (f) are recorded after a period of 1 h from those of (a), (b), and (c).
The EO response in a homeotropic cell for square-wave electric field , 100 Hz, . (a), (b), and (c) on the electro-optic response refer to three states; the corresponding textures are shown in Figs. 3(a), 3(b), and 3(c), respectively.
Dynamics of the induced biaxiality (a) at . (b) and (c) are obtained after 1 s and 30 s on the removal of the field for . A, P, and denote the directions of analyzer, polarizer, and electric field.
(a) Induced biaxiality vs electric field at a frequency of 100 Hz. (b) vs frequency for .
The dielectric loss spectra for two typical temperatures: (◆) and (●) with the fitted curves (solid lines) for a planar cell with brass electrodes for the cell thickness of for a frequency range of 100 Hz to 10 MHz. The dashed-line denotes fitting of the two relaxation processes and the dotted-line shows the conductivity for a temperature of .
Article metrics loading...