抄録
The layer structure of thin MHPOBC Free-Standing Film (FSF) was investigated by the transmission ellipsometry. In various films with thickness between 2 and 10 smectic layers, the quantized film thickness in SmA phase and the relation between the tilt angle and the film thickness in SmC_A phase was measured. It was found that the layer thickness in SmA phase is 2.5nm which is much smaller than that in the bulk sample measured by the X-ray study. The layer thickness seems not to depend on the tilt angle. It is considered that surface interaction of FSF may affect the layer thickness and tilt angle.
