A new photorefractive polymer/liquid crystal system

作者：Liu, H^*; Zhang, B; Gong, QH; Bai, YW; Chen, XF; Wan, XH; Zhou, QF

来源：Chinese Physics Letters, 2001, 18(7): 909-911.

DOI：10.3321/j.issn:0256-307X.2001.07.021

• POLYMERIC COMPOSITE
• ELECTROOPTIC CRYSTALS
• HOLOGRAPHIC STORAGE
• PERFORMANCE

The photorefractive properties of PVK-based polymeric composites doped with three liquid crystals, 4OCB (4-pertyloxy-4 '-cyanobiphenyl), 5OCB (4-pentyloxy-4'-cyanobiphenyl) and 8OCB (4-octyloxy-4'-cyanobiphenyl), were investigated by using the two-beam coupling experiment at 633mm. A gain coefficient over 34 cm(-1) at an applied field of 60 V/mum was observed. Among the three materials, the 8OCB-doped composite demonstrated a stronger orientational effect and the influence on charge field became apparent.

• 出版日期2001-7
• 单位北京大学