全像高分子材料之新穎體積全像紀錄研究與相關光資訊應用

Abstract

本計晝旨在探索『新穎體積全像紀錄技術以及其應用於光資訊之研究』，内容包括兩大 項目：（1).研製低收縮高分子體積全像材料，進行新穎的全像紀錄機制與特性研究，並針對相 關光資訊應用進行材料特性研發。（2).研究體積全像技術於前瞻光資訊之應用，著重於資訊儲 存媒體、3D顯示器元件以及全像光學元件等方向。

在低收縮高分子體積全像材料方面，將承續實驗室研發之PQ/PMMA高分子體積全像材 料的經驗及技術，首先完善兩階段熱聚合製程的技術，發展高光學品質的塊材製程，其次， 著重於兩種新穎的全像記錄方式研究：偏極化全像與雙波長全像。我們將以實驗進行光化學 分析，研究其記錄的物理機制，提供全像紀錄理論模型建立之基礎，且同時建立各式量測系 統進行相關光學實驗分析，量測全像記錄特性，配合相關記錄機制理論模擬比較，建立材料 參數提供規範制定與取捨，探索及設計其在光學資訊處理的相關應用。

在光資訊應用方面，將以實驗室建立體積全像技術出發，配合材料的研發，進行全像資 訊儲存媒體、3D顯示器元件以及全像光學元件等前瞻性研究。首先，根據偏極化全像紀錄特 性，研究偏極化資訊編碼及儲存多工之可行性，以增加資訊儲存的安全性及容量；其次，配 合材料低收縮紀錄特性，結合實驗室以往研究液晶3D顯示面板的基礎，進行液晶顯示器次 微米驅動特性，以及重建穿透式全像所需空間同調重建光源的研究，並以體積全像設計製作， 以實驗展示單色的穿透式全像3D顯示面板；根據極化全像紀錄之重建極化方向及雙波長全 像紀錄之選擇性紀錄兩個特殊特性，進行圓偏振極化分光器及積體化窄頻寬光學濾波器等新 穎全像光學元件之研究。

綜合理論與實驗之執行，吾人預期可以得到許多關鍵性成果，作為後續整合發展全像資 訊儲存處理、全像3D影像顯示系統以及全像光學元件的重要基礎。

We propose to launch a long term theoretical and experimental investigation on the novel volume holography in PQ/PMMA photopolymer and its possibility of using those volume holographic technologies for optical information storage, 3D holographic display devices and holographic optical components.

For holographic recording in photopolymer material, based on current research results of developing the PQ/PMMA photopolymer, we will study the key issue for two-step thermo-polymerization technique, and propose a system metric for fabricating bulk sample with good optical quality. Using these materials, novel holographic recordings including polarization holographic and two-color holographic recordings will be explored. The physical mechanism of these novel holographic recordings in our photopolymer materials will be studied and experimentally characterization of recording properties will be performed. The results provide the guidelines for designing and optimizing materials. In addition, according to holographic recording properties of the materials, we will explore their applications on optical information storage and processing.

For the holographic optical information applications, three topics will be studied, including polarization multiplexed holographic data storage, modulation of sub-micro display pixel and a spatially coherent lighting of novel holographic display system, as well as polarized holographic and cascaded narrowband optical filter components. Therefore, in the proposed program, we will first investigate the properties of polarization maintaining of recorded polarization hologram, in order to collect the knowledge and carry out ultra-high capacity data storage system using polarization multiplexing. With the material knowledge, we then focus both theoretical and experimental investigation on the possibility of developing holographic optical elements for 3D holographic display as well as polarization and spectral optical filter. Specifically, the tasks include (a). modulation and driving properties of the liquid crystal display panels; (b). volume holographic flat spatial coherent backlight; (c). circularly polarized holographic beam splitter; (d). cascaded holographic narrowband optical filters. In the long term investigation, the results of these research tasks can be integrated into a display system of 3D holographic images.

In summary, this research will perform an intensive study on novel applications of volume holographic technique. The developed materials and recording technique are expected to be a new invention, and the study will also possibly lead to exploring new physical mechanisms of holographic recording in photopolymer material. The developed holographic optical information applications will also be leading model that can open new window for using more freedoms from the light wave to create new optical elements.