Abstract
Anomalous deformations of smectic bubbles take place under DC electric fields. In the deformation, there are two types. Under low electric field, bubbles were elongated along the fields and stabilized into the constant size in the equilibrium, while under high field, dynamic oscillation replaces. A simple balance equation including electrostatic force & surface tension describes the static and the dynamic deformations quantitatively and semi-quantitatively, respectively. The result shows smectic bubble deformations can be used to visualize such invisible properties of LC films as conductivity, capacitance and surface tension.
