2C09 赤外誘起液晶配向制御 : スメクチックB相のドメイン変化(フォトニクス・光デバイス)

抄録

Optical texture change of SmB phase by infrared laser incidence (using Free Electron Laser) was observed by a polarized microscope. The incident wavelengths used in these experiments were selected for the vibrational excitation of a C=C stretching mode of the aromatic core. It was found that such an incidence could give rise to the formation of a new domain with uniform alignment in a non-uniform texture in SmB phase. The results indicate that the infrared incident technique is useful to control the alignment for highly ordered calamitic systems.