Najimiah Radiah Binti Mohamad

修士論文：「ホログラフィック液晶高分子複合体の作成と格子周期が回折特性に及ぼす影響」

論 文 概 要

In this research, we used two coherent laser beams to form intensity-modulated light pattern for fabricating holographic polymer dispersed liquid crystal (PDLC). In previous work, higher diffraction efficiencies can be obtained by higher exposure energy that significantly changed the orientation of the liquid crystal to align parallel with grating vector from perpendicular alignment. In the present study, further investigation of holographic PDLC diffraction characteristic has been done by varying for both grating constants and exposure energy. As the results, high diffraction efficiency shown for small grating constants caused by high optical anisotropy and strongly dependence to incident angle. Furthermore, LC is reoriented parallel to grating vector from perpendicular alignment according to higher exposure energy through molecular migration during the phase separation and polymerization degree of the photoreactive monomer.

（査読論文）

1.	Rotation of director during holographic recording in polymer dispersed liquid crystals, H. Ono, N. R. Mohamad, T. Sasaki, N. Kawatsuki and A. Ogiwara, Liq. Cryst. 35 (2008) 633-639.

（口頭発表）

1.	２００７年９月　日本液晶学会討論会 ホログラフック液晶高分子の形成初期過程の観察 Najmiah Radiah Binti Mohamad、小野浩司、川月喜弘、荻原昭文
2.	２００８年３月　第５５回応用物理学関係連合講演会予稿集　第３分冊 ホログラフィックＰＤＬＣの液晶配向特性の格子ピッチ依存性 Najmiah Radiah Binti Mohamad、荻原昭文、小野浩司
3.	２００８年１０月 Molecular Electronics and Bioelectronics, Korea-Japan Joint Forum 2008 (KJF2008) Effects of exposure energy and grating constants of holographic PDLC on director of liquid crystals N. R. Mohamad, A. Emoto, T. Sasaki, T. Shioda, H. Ono, A. Ogiwara, and N. Kawatsuki