本實驗主要在研究以無偏振性為主題的電控菲涅茲液晶透鏡，Fresnel lens在實驗中製程方法有兩種，第一種利用為顯影製程在玻璃基板上製作出Fresnel同心圓結構的光阻層，再利用SiO蒸鍍法做配向，藉由在液晶盒中有光阻區與無光阻區產生的相位差不同產生Fresnel lens。
第二種製程利用蝕刻ITO玻璃方式製作同心圓電極，藉由液晶盒內部有不同的電場分布使得奇數區域與偶數區域所造成的相位差異產生Fresnel lens的效果，且利用不同的配向法去製作出對偏振光無相依性的Fresnel lens。
本論文主要在探討，利用不同製程的方法製作無偏振性的液晶Fresnel lens，並針其對繞射效率無偏振性與反應時間做探討，在實驗中發現光阻型Fresnel lens在高電壓操作時可以達到很好的繞射效率且無偏振性佳，而蝕刻ITO TN Type Fresnel lens也能夠在高電壓操作下無偏振性且在切換聚焦與失焦有良好的反應速度。
I

This study proposes a polarization-independent liquid-crystal Fresnel lens using the twisted nematic liquid crystal (TN-LC). At the high voltage state, the TN-LC behaves as an optically anisotropic material which makes the proposed LC Fresnel lens possess a polarization-insensitive characteristic. Two kinds of LC Fresnel lens, photoresist type and patterned electrodes type, are prepared in our experiment. Experimental results reveal that the photoresist type has a high diffraction efficiency and a good polarization-independent characteristic. However, its diffraction efficiency cannot be switched off. Contrarily, the patterned electrode type has the characteristics of the switch-off and good polarization-independent with a moderate diffraction efficiency

中文摘要…………………………………………………Ⅰ
abstract………………………………………………… Ⅱ
目錄…………………………………………………… Ⅲ
圖表目錄……………………………………………………… Ⅶ
第一章
導論
1-1前言……………………………………………………01
1-2液晶簡介………………………………………………03
1-2.1何謂液晶…………………………………………..03
1-2.2液晶的歷史.................................................................03
1-2.3液晶的種類…………………………………………04
1-3Fresnel Lens 導論…………………………………11
1-4Fresnel Zone Plate………………………………….13
第二章
實驗相關理論…………………………………………….16
2-1液晶的物理性質……………………………………16
2-1.1液晶分子排列的秩序參數………………………16
2-1.2液晶的彈性係數……………………………………17
2-1.3液晶的介電異向性…………………………………18
2-1.4液晶折射率之非均向性…………………………19
2-2液晶分子配向排列理論……………………………22
2-3Fresnel理論………………………………………24
第三章 樣品製作與實驗架設……………………………31
3-1.1材料介紹與實驗設計………………………………31
3-1.2樣品製作……………………………………………35
3-2實驗裝置………………………………………………47
3-2.1繞射效率量測………………………………………47
3-2.2樣品偏振性量測……………………………………49
3-2.3實驗樣品成像實驗裝置……………………………50
3-2.4顯微鏡下CCD拍攝裝置……………………………52
3-2.5反應時間量測………………………………………53
第四章 實驗結果與分析…………………………………54
4-1 光阻型Fresnel lens…………………………………54
4-1.1顯微鏡下樣品拍攝結果……………………………54
4-1.2實驗分析……………………………………………55
4-1.3樣品繞射效率量測實驗結果……………………56
4-1.4實驗討論……………………………………………57
4-1.5樣品成像實驗結果…………………………………59
4-1.6實驗討論…………………………………………….60
4-2蝕刻ITO TN與ECB type Fresnel lens…………….62
4-2.1顯微鏡下樣品拍攝結果…………………………62
4-2.2實驗分析……………………………………………66
4-2.3樣品繞射效率量測結果……………………………68
4-2.4實驗分析……………………………………………71
4-2.5樣品成像實驗結果…………………………………74
4-2.6實驗討論……………………………………………77
4-2.7反應時間量測結果…………………………………78
4-2.8實驗討論……………………………………………79
4-3蝕刻ITO VA Type Fresnel lens……………………80
4-3.1顯微鏡下樣品拍攝結果……………………………80
4-3.2實驗分析…………………………………………..82
4-3.3樣品繞射效率量測結果……………………………83
4-3.4實驗分析……………………………………………84
4-3.5樣品成像實驗結果與分析…………………………85
4-3.6反應時間量測結果…………………………………87
4-3.7實驗分析……………………………………………88
第五章 實驗結論與未來展望……………………………89
參考文獻..............................................................................91

1.
Hongwen Ren, Yun-Hsing Fan, and Shin-Tson Wu : Appl. Phys. Lett. 83, No. 8 (2003)
2.
Yun-Hsing Fan, Hongwen Ren, and Shin-Tson Wu : Opt. Express, Vol. 11, No. 23( November. 2003)
3.
Christopher J. Campbell, Eric Baker, Marcin Fialkowski, Agnieszka Bitner, Stoyan K. Smoukov, and Bartosz A. Grzybowskia: J. Appl. Phys. 97, 126102 ~2005
4.
Dong-Woo Kim, Chang-Jae Yu, Hak-Rin Kim, Sung-Jin Kim, and Sin-Doo Lee: APPLIED PHYSICS LETTERS 88, 203505 (2006)
5.
Yun-Hsing Fan, Hongwen Ren, and Shin-Tson Wu : Opt. Express, Vol. 13, No. 11( May. 2005)
6.
Ko-Ting Cheng1, Cheng-Kai Liu1, Chi-Lun Ting and Andy Ying-Guey Fuh1: OPTICS EXPRESS 17 October 2007 / Vol. 15, No. 21
7.
Hongwen Ren, David W. Fox, Benjamin Wu, and Shin-Tson Wu: OPTICS EXPRESS 3 September 2007 / Vol. 15, No. 18
8.
Tsung-Hsien Lin, Yuhua Huang, Andy Y. G. Fuh,1 and Shin-Tson Wu2: OPTICS EXPRESS 20 March 2006 / Vol. 14, No. 6
9.
Oleg Pishnyak, Susumu Sato, and Oleg D. Lavrentovich: APPLIED OPTICS _ Vol. 45, No. 19 _ 1 July 2006
10.
Chih-Cheng Cheng, C Alex Chang, Chang-Hua Liu3 and J Andrew Yeh: J. Opt. A: Pure Appl. Opt. 8 (2006) S365–S369
11.
Hongwen Ren, Janet R. Wu, Yun-Hsing Fan, Yi-Hsin Lin, and Shin-Tson Wu: OPTICS LETTERS / Vol. 30, No. 4 / February 15, 2005
12.
Liang-Chen Lin, Hung-Chang Jau, Tsung-Hsien Lin, and Andy Y.-G. Fuh: OPTICS EXPRESS Vol. 15, No. 6 (2007)
13.
Aleksey N. Simonov1, Gleb Vdovin1, and Mikhail Loktev: / OPTICS EXPRESS 11 June 2007 / Vol. 15, No. 12
14.
Chih-Cheng Cheng, C. Alex Chang, J. Andrew Yeh: OPTICS EXPRESS 1 May 2006 / Vol. 14, No. 9
15.
Eugene Hecht, “ OPTICS ” (3rd ed., Addison Wesley, San Francisco, (2002)
16.
Hongwen Ren, Yun-Hsing Fan, and Shin-Tson Wu: OPTICS LETTERS / Vol. 29, No. 14 / July 15, 2004
17.
Jurgen Jahns and Susan J. Walker : Appl. Opt., Vol. 29, No. 7(1990)
18.
Kasra Rastani, Abdellatif Marrakchi, Sarry Fouad Habiby, William M. Hubbard, Harold Gilchrist, and Robert E. Nahory : Appl. Opt., Vol. 30, No. 11(1991)
19.
S.T. Wu and D.K. Yang, “ Reflective Liquid Crystal Displays ” (John Wiley & Sons, England, 2001)
20.
K.-C. Lo, J.-D. Wang, and C.-R. Lee: APPLIED PHYSICS LETTERS 91, 181104 (2007)
21. 松本
正一, 角田市良, " 液晶之基礎與應用 " (臺北市, 國立編譯館, 1996)