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研究生: 楊繼賢
Chi-Hsien Yang
論文名稱: 使用微透鏡陣列之同軸全像儲存系統與其考慮材料紀錄動態範圍之模型建立
Micro Lens-Array Modulated Coaxial Holographic Storage System and Optical Model Considering Recording Dynamics of Material
指導教授: 孫慶成
Ching-Cherng Sun
口試委員:
學位類別: 碩士
Master
系所名稱: 理學院 - 光電科學與工程學系
Department of Optics and Photonics
論文出版年: 2017
畢業學年度: 105
語文別: 中文
論文頁數: 125
中文關鍵詞: 相位疊加法體積全像同軸全像儲存透鏡陣列
外文關鍵詞: VOHIL, Volume hologram, Coaxial, holographic, storage, lens array
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  • 本論文利用純量繞射理論與相位疊加法搭配PQ/PMMA材料特性建立了一考慮材料紀錄動態範圍的全像儲存系統光學模型,透過此模型可以模擬不同紀錄能量、時間下的繞射影像,以及讀取時材料位移的位移靈敏度和繞射影像變化。以此模型為基礎,架設一套使用微透鏡陣列相位調製之自動化同軸全像儲存系統,並成功在實驗中利用此系統進行資料的讀寫。


    In this thesis, an optical model considering recording dynamics of material PQ/PMMA is proposed based on scalar diffraction theory, VOHIL and characteristic of PQ/PMMA. With this optical model, the diffraction image recorded in different time and energy can be predicted, and also the shift selectivity. Based on the optical model, an automatic coaxial holographic data storage system is built. In experiment, data can successfully be written in and retrieved out from the system.

    摘要 I 致謝 III 目錄 IV 圖目錄 VIII 表目錄 XIV 第一章 緒論 1 1-1 研究動機 1 1-2 全像儲存技術之發展 2 1-3 論文大綱 5 第二章 原理介紹 7 2-1 全像術 7 2-2 布拉格條件 9 2-3 耦合波理論 13 2-4 波恩近似法 23 2-5 相位疊加法 28 2-6 稀疏碼 31 2-7 錯誤修正碼 33 2-7-1 低密度同位檢查碼 33 第三章 同軸全像儲存系統之建立 38 3-1 同軸全像儲存 38 3-1-1 改良之同軸全像儲存系統架構比較 39 3-1-2 加入透鏡陣列改良之同軸全像儲存系統 41 3-2 資料編碼 46 3-3 資料解碼 48 3-3-1 稀疏碼誤碼率與LDPC碼誤碼率之關係 52 3-4 全像儲存系統自動控制流程 54 3-4-1 資料記錄流程 54 3-4-2 資料讀取流程 55 3-5 儲存材料制備與其特性 56 第四章 系統考慮材料紀錄動態範圍之模擬與實驗分析 60 4-1 系統理論模型推導 60 4-2 有無考慮材料紀錄動態範圍對系統模型之影響 66 4-3 自動化同軸全像儲存系統實驗架構 69 4-4 材料特性與相位調製對繞射光影像之影響 71 4-4-1 不同記錄時間之影響 71 4-4-2 不同材料厚度之影響 74 4-5 系統橫向位移靈敏度分析 75 4-6 結論 82 第五章 自動化同軸全像儲存系統資料存取實驗結果 84 5-1 系統影像品質探討 84 5-2 系統自動存取資料實驗結果 87 5-3 系統容錯率提升之方法 89 第六章 結論 93 參考文獻 95 中英文名詞對照表 100

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