超薄銀膜之光學特性分析與應用

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姓名

黃俊維(Chun-Wei Huang) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

超薄銀膜之光學特性分析與應用
(Characterization of ultra-thin silver films and its application)

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摘要(中)

本論文為分析金屬銀的光學常數在膜層厚度 10 ~ 100 nm 時的變化，並利用不同厚度銀的光學常數設計出可見光波段的中性分光鏡。實驗第一階段中利用濺鍍沉積法鍍製不同厚度銀膜，並使用橢偏儀量測膜的橢偏參數，再用 CompleteEASE 軟體擬合膜層的光學常數 n、k。實驗第二階段使用 Macleod 軟體設計並模擬膜層的穿透反射光譜，利用第一階段得到的銀的光學常數做分光鏡膜層設計，並以濺鍍沉積法鍍製出分光鏡，以多角度積分球光譜儀量測光 45 度角入射至分光鏡的穿透、反射光譜。
由於薄膜模擬軟體：如 Macleod，軟體內材料的光學常數 n、k 皆為塊材(Bulk)的光學常數。而金屬膜在厚度薄的狀況下，其光學常數與塊材的光學常數有很大的不同。故膜層中若有薄的金屬膜，模擬的光譜圖會跟實際光譜有差異。本實驗建立出薄 Ag 光學常數到塊材 Ag 光學常數的趨勢，使未來膜層設計時更精準。

摘要(英)

In this research, we investigate the optical constants of ultra-thin silver films of thickness from 10nm to 100nm, and then design a neutral beam splitter applied in visible light using the optical const ants we’ve got. First, the silver films of different thickness were deposited onto glass substrates using sputtering deposition, and then measured by spectroscopic ellipsometry to investigate the film optical constants. Later , we designed the beam splitter with the optical constant we’ve got and made the beam splitter using sputtering. Finally, we measured the spectrum of the beam splitter with the light incident angle of 45 degree.
Thin film design software, like Macleod, has material optical constants database with the bulk material. With ultra-thin film optical constants, we could have better simulation result in our design.

關鍵字(中)

★ 銀
★ 濺鍍
★ 光學常數
★ 分光鏡

關鍵字(英)

★ silver film
★ sputter
★ optical constant
★ beam splitter

論文目次

目錄 ..........................................................................................................................................................................I
圖目錄 .................................................................................................................................................................. III
表目錄 .................................................................................................................................................................... V
摘要 ....................................................................................................................................................................... VI
Abstact ................................................................................................................................................................ VII
致謝 .................................................................................................................................................................... VIII
第一章緒論 ........................................................................................................................................................... 1
1-1 研究動機 ................................................................................................................................. 1
第二章理論介紹 ................................................................................................................................................... 2
2-1 光學薄膜理論 ......................................................................................................................... 2
2-1-1 Maxwell 電磁波方程式............................................................................................................... 2
2-1-2 單介面之反射與透射(垂直入射) ............................................................................................... 4
2-1-3 單介面之反射與透射(斜向入射) ............................................................................................... 6
2-1-4 單層膜與多層膜 ......................................................................................................................... 8
2-1-5 單層膜之斜向入射 ................................................................................................................... 13
2-2 橢圓偏振儀（Ellipsometer） ............................................................................................... 15
2-3 分光鏡 ................................................................................................................................... 16
第三章實驗方法與設備 ..................................................................................................................................... 18
3-1 實驗儀器 ............................................................................................................................... 18
3-1-1 磁控濺鍍機 ............................................................................................................................... 18
3-2 量測儀器 ............................................................................................................................... 18
3-2-1 紫外光/可見光光譜儀 .............................................................................................................. 18
3-2-2 Alpha-step .................................................................................................................................. 20
3-2-3 橢偏儀 ....................................................................................................................................... 20
3-2-4 多角度積分球光譜儀 ............................................................................................................... 22
3-3 實驗流程 ............................................................................................................................... 24
3-3-1 鍍製 Ag 薄膜 ............................................................................................................................. 25
3-3-2 使用橢偏儀量測並擬合光學常數 ........................................................................................... 25
3-3-3 模擬並鍍製分光鏡 ................................................................................................................... 27
3-3-4 量測分光鏡光譜 ....................................................................................................................... 27
第四章實驗分析與結果 ..................................................................................................................................... 28
4-1 Ag 薄膜光學常數 ................................................................................................................. 28
4-1-1 Ag 薄膜光譜模擬值與量測值比較 .......................................................................................... 28
4-1-2 銀薄膜光學常數擬合值 ........................................................................................................... 34
4-2 分光鏡光譜模擬值與量測值比較........................................................................................ 39
4-3 分光鏡光譜模擬值與量測值比較........................................................................................ 46
第五章結論與未來工作 ..................................................................................................................................... 48
參考文獻 ............................................................................................................................................................... 49

參考文獻

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指導教授

李正中(Cheng-Chung Lee)

審核日期

2017-8-21

推文