(3.237.178.91) 您好!臺灣時間:2021/03/02 23:08
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
: 
twitterline
研究生:顏宏麟
研究生(外文):Hung-Ling Yen
論文名稱:熱壓多晶氟化鎂光罩材料之微結構與光學性質之間的關係研究
論文名稱(外文):The Study of Relations between Microstructure and Optical Properties of Hot-Pressed Polycrystalline Magnesium Fluoride Dome Material
指導教授:張晴生
指導教授(外文):Chen-Shen Chang
學位類別:碩士
校院名稱:逢甲大學
系所名稱:光電研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2007
畢業學年度:95
語文別:中文
論文頁數:70
中文關鍵詞:光學材料干涉條紋氟化鎂光罩熱壓
外文關鍵詞:interference patternHot-pressingMgF2 domeoptical material
相關次數:
  • 被引用被引用:0
  • 點閱點閱:288
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:22
  • 收藏至我的研究室書目清單書目收藏:0
本文主要是研究由熱壓粉體所製成的多晶氟化鎂光罩元件在3.0至5.0 μm之間能呈現高直線穿透率。緻密的氟化鎂粉末被加熱至570℃同時在2.8 ton/cm2的壓力下維持30分鐘。組織構造是熱壓多晶氟化鎂光罩材料的一個特色,此組織構造是隨著半球形光罩在熱壓成型時的半徑橫截面作變化。試片上的光學異向性由於加熱的不均勻或者是壓應力的作用所引起的,並表現在偏振光的干涉條紋上。研究發現多晶氟化鎂的短波長穿透終止邊的偏移和粉體熱壓時的熱壓溫度成函數關係,但是粉體煅燒的溫度對於短波長穿透終止邊的偏移並無明顯的影響。
This dissertation studies the polycrystalline MgF2, fabricated into optical dome shape component by hot-pressing powder, exhibites high in-line transmittance from 3.0 to 5.0 μm. The compacted powder MgF2 was heated to 570℃ and held under a pressure 2.8 ton/cm2 for 30 minutes. A unique feature of hot-pressed polycrystalline MgF2 dome material is texturization, which varies through the cross section sweeping the radius of the hemisphere dome during the molding. When anisotropy arising from the non-uniform heating or due to the action of a compressive strain, is present in the sample, an interference pattern appears in the polarized light. The shift of the short-wavelength transmission cut-off of polycrystalline MgF2 is investigated as a function of the hot pressing temperature of powder, but the calcinations temperature of powder has no apparent effect on the shift of the short-wavelength transmission.
誌謝....................i
摘要....................ii
Abstract....................iii
目錄....................v
圖表目錄....................vii
第一章 緒論....................1
1.1 前言....................1
1.2 研究動機與目標....................2
1.3 章節概述....................4
第二章 理論基礎....................5
2.1 光的傳播及特性....................5
2.1.1 光在真空中傳播....................5
2.1.2 光在介質中傳播....................6
2.2 雙折射晶體....................11
2.3 氟化鎂晶體特性....................19
第三章 製程與測量方法....................22
3.1 前言....................22
3.2 熱壓製程....................22
3.3 測量方法....................24
3.3.1 熱壓參數....................24
3.3.2 偏光儀....................27
第四章 測量結果與分析....................30
4.1 前言....................30
4.2 晶粒大小與穿透....................30
4.2.1 相同煅燒溫度....................32
4.2.2 相同熱壓溫度....................37
4.3 優先排列組織....................41
4.3.1 平面與橢圓偏光儀....................41
4.3.2 單晶氟化鎂光罩....................44
4.3.3 熱壓多晶氟化鎂光罩....................48
4.3.4 三種光罩之穿透曲線....................53
第五章 結論....................56
參考資料....................57
1.F. K. Volynets, Sov. J. Opt. Techno., Vol. 45, pp. 706, 1978.
2.W. F. Parsons, Applied Optics, Vol. 11, pp. 43 , 1972.
3.B. Gunston, The Illustrated Encyclopedia of Aircraft Armament, Orion Book, N. T. pp. 25, 1988.
4.R. L. Gentilman, SPIE, Vol.683, pp. 2, 1988.
5.F. K. Volynets, The Optical Properties and Areas of Application of Optical Ceramics, Optical Technology, Vol. 40, No. 10, pp. 640, Oct., 1973.
6.Dean A. Buckner, Harold C. Hafner, and Norbert J. Kreidl, Hot-Pressing Magnesium Fluoride, American Ceramic Society, Vol. 45, pp. 435-438, 1962.
7.E. L. Dereniak and G. D. Boreman, Infrared Detectors and Systems, John Wiley & Sons, 1996.
8.Eugene Hecht, Optics, 4th ed., Addison Wesley, 2002.
9.G. R. Fowles, Introduction to Modern Optics, 2nd ed., Rinehart & Winston, INC. N. Y. Chicago, 1975.
10.S.O. Kasap, Optoelectronics and Photonics Principles and Practices, 1st ed., Pearson Education, 2001.
11.維基百科,http://zh.wikipedia.org/w/index.php
12.林懷玉,氟化鎂光學陶瓷之研究,國立成功大學礦冶及材料科學研究所博士論文,1987.
13.K. A. Doak, Metal Power Report, Vol. 37, pp. 577, 1982.
14.http://www.rudolphinst.com/polariscopes_stress.html
15.D. A. Gryunak and D. E. Burch, J. Opt. Soc. Amer., Vol. 48, pp. 625, 1963.
16.A. Yariv and P. Yen, Optical Waves in Crystal, John Wiley & Sons, 1984.
17.Der-Chin Su and Cheng-Chih Hsu, Method for Determining the Optical Axis and (ne, no) of a Birefringent Crystal, Applied Optics, Vol. 41, No.19, pp. 2926-2940, July, 2002.
18.Cheng-Shen Chang, Min-Hsiung Hon and Sheng-Jenn Yang, The Optical Properties of Hot-Pressed Magnesium Fluoride and Single-Crystal Magnesium Fluoride in the 0.1 to 9.0 μm Range, Journal of Materials Science, Vol. 26, pp. 1627-1630, 1991.
19.Cheng-Shen Chang, Min-Hsiung Hon and Sheng-Jenn Yang, Effect of Grain Growth of Hot-Pressed Magnesium Fluoride on Optical Transmittance, Japanese Journal of Applied Physics, Vol. 30, No. 3, pp. 506-510, March, 1991.
20.Cheng-Shen Chang, Min-Hsiung Hon and Sheng-Jenn Yang, Effect of Calcination and Hot-Pressed Temperatures of Magnesium Fluoride Powder on Its Optical Property, Japanese Journal of Applied Physics, Vol. 29, No. 12, pp. 2751-2754, Dec., 1990.
21.Cheng-Shen Chang, Min-Hsiung Hon, Texture Effect of Hot-Pressed Magnesium Fluoride on Optical Transmittance, Materials Chemistry and Physics, Vol. 81, pp. 27-32, 2003.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
系統版面圖檔 系統版面圖檔