Abstract
It was found that the vibrational excitation of columnar liquid crystalline compounds leads to the change of liquid crystalline alignment for a columnar mesophase. This is a quite new phenomenon for the alignment change of liquid crystals. The studies on conventional rod-like liquid crystals implied that this is good for highly ordered thus highly viscous liquid crystals for the alignment control. The infrared laser systems which are wavelength-tunable may make it possible to develop a new method for a micro/nano-fabrication technology for organic functional devices including materials with highly ordered mesophase.