本文利用帶自動控制的柴式提拉法從熔體中生長出不同Yb3+摻雜YbxY1-xAG (0≤x≤1)單晶，生長出來的YbxY1-xAG (0≤x≤1)晶體，且針對其晶體結構及光學性質進行研究。
我們利用EXAFS實驗來研究晶體內部結構，從 X-ray實驗出來的數據作初步分析後發現，在摻雜過程中整體結構並沒有明顯的改變，但在細微結構上，卻發現隨著摻雜濃度的改變，結構顯示有隨著摻雜濃度不同，而變化的趨勢。而EXAFS實驗更進一步指出晶格細微變化，是與摻雜的濃度息息相關。
同時我們在文中也做了YbxY1-xAG (0≤x≤1)單晶螢光光譜的研究，分析當利用973nm的雷射入射晶體後，所激發出來的綠光現象(中心波長544nm)，為了詳細瞭解原因，我們仔細分析螢光光譜不同波段上發光的可能原因，並發現，這綠光的來源，來自於YbxY1-xAG (0≤x≤1)晶體的雙光子轉換效應。

High quality YbxY1-xAG (0≤x≤1) single crystals were grown by using the Czochralski method. The structural properties of YbxY1-xAG (0≤x≤1) single crystals were also investigated using the EXAFS method. Additionally, for the first time, EXAFS results were compared with XRD results. Moreover, without essential lattice structure transformation, YbxY1-xAG crystals can be found due to the varying of doping concentration in XRD measurements. However, EXAFS measurements indicated that the local fine structural variation around the Yb3+ ion depends on the Yb3+ concentration.
This work also studies the two-photon luminescence spectra of a Yb3+ doped YAG crystals. To study the spectral performance of Yb:YAG crystal, intense green light (centered at about 544nm) was generated by the crystal upon excitation using a 973nm InGaAs LD pump source. The luminescence spectra were obtained for various Yb concentrations and the emission intensity were plotted versus Yb3+ concentration. The green emission light attributed to Yb3+ two-photon transition.

論文審定書 i
致謝 iii
中文摘要 iv
Abstract v
目錄 vi
圖次 viii
表次 xii
第1章 引言 1
第2章 Re3+:YAG結構、發光特性及生長原理 3
2.1 釔鋁石榴石(YAG)及鐿鋁石榴石(YbAG)晶體結構、特性 3
2.2 稀土發光材料特性 8
2.3 從熔體中生長晶體 14
2.3.1 晶體生長動力學 14
2.3.2 熔體內對流及流動情形 17
2.3.3 晶體缺陷 21
第3章 晶體生長與分析實驗 26
3.1 直徑自控柴氏提拉法生長YbxY3-xAl5O12 (0≤x≤3) 單晶 28
3.1.1 YbxY3-xAl5O12 (0≤x≤3)原料備製 28
3.1.2 YbxY3-xAl5O12 (0≤x≤3)晶體生長 31
3.2 分析實驗 41
3.2.1 X-ray晶體繞射實驗 41
3.2.2 EXAFS精細結構分析實驗 42
3.2.3 Photoluminescence spectrum光致螢光實驗 44
第4章 實驗結果與討論 45
4.1 YbxY3-xAl5O12 (0≤x≤3) 晶體結構特性研究 45
4.2 YbxY3-xAl5O12 (0≤x≤3) 晶體雙光子效應研究 63
第5章 結論及未來展望 80
第6章 參考文獻 82
著作目錄 86
I. 期刊論文 86
II. 研討會論文 87

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