| 研究生: |
練政廷 Cheng-Ting Lian |
|---|---|
| 論文名稱: |
脈衝式離子源助鍍氟化鎂薄膜之研究 The research of pulse ion beam-assisted deposition of magnesium fluoride thin film |
| 指導教授: |
李正中
Cheng-Chung Lee |
| 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 |
| 畢業學年度: | 95 |
| 語文別: | 中文 |
| 論文頁數: | 52 |
| 中文關鍵詞: | 離子源 、氟化鎂 |
| 外文關鍵詞: | ion source, magnesium fluoride |
| 相關次數: | 點閱:8 下載:0 |
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本論文是以熱阻舟蒸鍍系統配合脈衝式離子助鍍氟化鎂(MgF2)薄膜,研究脈衝式離子源對氟化鎂薄膜的光學特性、水氣吸收特性、微觀結構、表面粗糙度、應力與結晶特性的影響。
光學特性方面,在Constant Mode 離子助鍍下,氟化鎂薄膜的折射率明顯增加了,但是在短波段有著較大的光學損耗,相較於Constant Mode,在Pulse Mode 離子助鍍下,薄膜在短波長的光學損耗明顯減小了,但是有水氣吸收的現象發生;微觀結構方面,在離子助鍍下,薄膜的柱狀結構變得較明顯,柱與柱之間較緻密,薄膜的表面粗糙度在離子助鍍下,隨著Beam Current 增加有變小的趨勢;結晶特性方面,在離子助鍍下,結晶型態並無改變,但是薄膜的結晶方向更一致;應力方面,在Beam Current 1.0A 隨著Beam Current 增加,薄膜的壓應力越來越大。
The deposition of magnesium fluoride optical thin film by using thermal boat evaporation with pulse ion-assisted deposition (IAD) for UV application was investigated in this thesis. Due to the ion beam assistance, the optical properties and micro-structural properties of the magnesium fluorides thin films, including refractive index, surface roughness were significantly improved which are required in laser material processing and semiconductor lithography.
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