Inscribing Holographic Patterns into a Polymer Liquid Crystals

Abstract

Two-beam interference holographic patterns have been inscribed into a diacrylate mesogen in a liquid crystalline phase. The recorded holographic pattern can be permanently stored by polymerization of the diacrylate mesogen. In the polymer storage medium, the local orientational ordering is determined by the interfering characteristics of the writing holographic pattern. The mesogenic groups in the regions exposed to constructive interference filed are found to orient in a unique direction, whereas a well aligned polymeric plate is not obtained in those regions exposed to destructive interference field.

Keywords:

• diacrylate mesogen
• holographic recording
• optical storage
• polymer storage medium
• two-beam interference

Acknowledgments

The authors acknowledge the financial support from NSC of Taiwan through project NSC962221E110042 and the “Aim for Top Universities Plan” funded by NEC of Taiwan.