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系統識別號 U0026-2607201901141000
論文名稱(中文) 利用共振腔設計產生低M-squared光束品質的圓柱向量光束
論文名稱(英文) Cavity design for the generation of cylindrical vector beam with low M-squared beam quality
校院名稱 成功大學
系所名稱(中) 光電科學與工程學系
系所名稱(英) Department of Photonics
學年度 107
學期 2
出版年 108
研究生(中文) 何振宇
研究生(英文) Chen-Yu Ho
學號 L76051045
學位類別 碩士
語文別 中文
論文頁數 48頁
口試委員 指導教授-魏明達
口試委員-曾碩彥
口試委員-徐旭政
口試委員-陳慶緒
中文關鍵字 圓柱向量光束  G1G2  M2品質因子 
英文關鍵字 cylindrical vector beam  G1G2  M-squared quality factor 
學科別分類
中文摘要 本文主要利用四面鏡共振腔的設計來產生圓柱向量偏振光,利用泵源光進入雙折射晶體Nd:GdVO4後造成e-ray和o-ray的分離,做出徑向圓柱偏振或方向角圓柱偏振光。在G1G2乘積為0跟1之間的穩定區範圍內,藉由調控共振腔的長度,可以得到不同的光形變化,而當在第一段長度Z1為9.61 cm時,可在較廣的範圍內觀察到圓柱向量光束,且在特定長度下,圓柱向量光束有很小的發散角度且功率穩定,同時光在空間分佈上有著不錯的偏振度,經由M2的量測方法下,算出圓柱向量光束有低品質因子Mx和My約在3左右。

英文摘要 In this thesis, the design of the four-mirror resonance cavity is mainly used to generate cylindrical vector beam, which is produced by separating e-ray and o-ray from birefringence crystal Nd:GdVO4. Radially polarized beam can be cause from e-ray and azimuthally polarized beam from o-ray. In the stable range between 0 and 1, different patterns can be obtained by adjusting the length of the resonance cavity. When the first length of Z1 is 9.61 cm, the cylindrical vector beam can be observed in a wide range. Under the specific length, the cylindrical vector beam has a small divergence angle and power stability. At the same configuration, cylindrical vector beam has a good polarization in spatial distribution, and the M-squared quality factor of the cylindrical vector beam is demonstrated with a low value.
論文目次 摘要 I
SUMMARY II
致謝 V
目錄 VII
圖目錄 IX
第一章緒論 1
1.1 簡介 1
1.2 研究動機與目的 4
第二章圓柱向量光束 5
2.1原理 5
2.1.1圓柱向量光束的基本特性 5
2.1.2圓柱向量光產生機制 8
2.1.3共振腔設計之穩定區範圍 9
2.1.4 M-squared品質因子 13
2.2 圓柱向量光的產生與光形變化 15
2.2.1實驗架構和步驟 15
2.2.2 G1G2模擬範圍 20
2.2.3腔長不同的產生雷射範圍 26
2.2.4腔長對應光形的特性及變化 28
2.2.5不同共振腔下之圓柱向量光束 39
第三章結論與未來展望 44
3.1 結論 44
3.2未來展望 45
參考文獻 46

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