本文利用具雙折射性質的方解石晶體，以及折射率匹配塑膠，製作出偏極化選擇的繞射式光學元件。使之對入射光的偏極化方向具有選擇性，只讓特定偏極方向的光波產生繞射。
在兩種不同切割方向的方解石基板上，我們以濕蝕刻製作了線寬從4μm到8μm的二階光柵圖案，加上匹配塑膠層後成為一偏極化的分光元件。在測試繞射光強的分布後，發現所製作的元件能夠用軟體模擬出其繞射行為。
濕蝕刻的過程中，我們觀察到呈現矩形與V字型的蝕刻溝槽，因此我們設計並且製作了具有V-型光柵結構的偏極片，光柵週期為8μm、12μm與16μm。此元件使特定方向的偏極光產生繞射，而讓原入射方向只剩下另一偏極方向的光，我們量測的消光比最小到達0.009。

1.Stefen Sinzinger, Jurgen Jahns, Microoptics, Wiley-VCH, New York (1999)
2.J. Hoβfeld, Dcolumbus, H. Sprave, T. Tschudi, and W. Dultz, "Polarizing computer-generated holograms," Opt.Eng. 32, 1835-1838 (1993)
3.N. Nieuborg, A. Kirk, B. Morlion, H. Thienpont, and I. Veretennicoff, "Polarization-selective diffractive optical elements with an index matching gap material," App. Optics 20, 4681-4685(1997)
4.J. Ford, F. Xu, K. Urquhart, and Y. Fainman, "Polarization-selective computer-generated holograms," Opt. Lett. 18, 456-458(1993)
5.F. Xu, R. C. Tyan, P. C. Sun, and Y. Fainman, "Form-birefringent computer-generated holograms," Opt. Lett. 21, 1513-1515(1996)
6.S. Q. Liu, Y. S. Chen, N. J. Wu, and A. Ignatiev, "Realization of a polarizer employing the combined effects of birefringence and diffraction," Opt. Lett. 22, 1518-1520(1997)
7.施錫富, 朱朝居, 李桂仁, "高效率之多光束全像型光學頭繞射光學元件," Proc. Of Optics and Photonics Taiwan (2001)
8.李金萍, "極化繞射光學元件在高密度光學讀取頭上之應用研究," 中央大學光電科學研究所碩士論文(2000)
9.Joseph W. Goodman, "Introduction to Fourier Optics," McGraw-Hill, New York, second edition (1968)
10.E. Hecht and A. Zajac, "Optics," Addison-Wesley, p.283-292 (1974)
11.王信中, "光在各向同性與各向異性介質介面上反射之情形," 中央大學光電科學研究所碩士論文, p.6-13(2001)
12.余樹楨, "晶體之結構與性質," 渤海堂文化公司, p.295-300 (1987)
13.梁繼文, "礦物學(下)," 五南圖書, p.921-929 (1984)
14.A. Yariv, P. Yeh, "Optical waves in crystals," John-Wiley(1984)
15.M. Madou, "Fundamentals of Microfabrication," CRC Press, New York (1997)
16.S. Liu, C. Li, Y. Chen, "Polarization device employing the combination effect of double refraction and diffraction," Appl. Phys. Lett. 67, 1972-1974(1995)