本研究中以連續放光的氬離子雷射(波長488nm、垂直偏振)引發雙光束之全像干涉光場，並用以照射高分子液晶薄膜，其中高分子液晶薄膜是利用毛細現象於140℃灌注RM257材料於空的液晶盒中。利用RM257薄膜我們成功的記錄下全像干涉光場的光學訊息，且經過照射的RM257薄膜會因為內部分子具有週期性排列的關係而形成全像光柵。於研究中我們改變雷射強度、樣品溫度、干涉周期與照射時間…等以達到最佳的配向。並探討RM257薄膜經照射後，內部分子的組構、指向與光學特性。

In the present study we investigate the use of polymer liquid crystal for holographic recording. Holographic patterns were produced by means of two-beam interference using an Ar+ laser. The polymer liquid crystal thin layers were prepared by injecting RM257 into cells through capillary action at 140°C where the RM257 mesogen was in isotropic state. By exposing the mesogenic layer to the laser interference patterns, we have successfully imprint holographic patterns into RM257 thin layers. In order to reach the best alignment, the intensity of laser beam, sample temperature, the spacial period and exposure time must be properly set.

摘要 II
Abstract III
致謝 IV
目錄 V
圖表索引. VII
第一章 簡介 1
第二章 相關基本理論 3
2-1 液晶簡介 3
2-1-1 物質的中間相 3
2-1-2 液晶的方向與位置秩序 4
2-1-3 液晶的分類 6
2-1-4 高分子液晶 9
2-2 液晶光電特性簡介 12
2-2-1液晶的光學異向性 12
2-2-2液晶的旋光性 15
2-3 全像干涉光場 17
2-4 全像光柵 19
2-5 量測系統理論 24
2-5-1 熱台偏光顯微鏡 24
2-5-2 顯微鏡光強度檢測系統 25
2-5-3 細薄光柵繞射效率檢測系統 26
第三章 高分子液晶樣品製備與系統架設 27
3-1 高分子液晶樣品製備 27
3-1-1 材料介紹 27
3-1-2樣品製作 28
3-2 實驗裝置的架設 30
第四章 RM257薄膜對全像干涉光場的記錄 32
4-1 溫度對RM257薄膜的影響 32
4-2 全像干涉干涉光場對RM257薄膜的配向 40
4-3 不同條件之全像干涉光場對RM257薄膜影響 44
4-3-1 不同干涉週期 44
4-3-2不同的照射時間 48
4-4 RM257光柵對光學的調變討論 53
第五章 總結 56
參考文獻 57

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