Measurement of the Birefringence in Bulk Optical Media by Using Interferometric Methods

다국어 초록 (Multilingual Abstract)

Accurate knowledge of the index of refraction of an optical medium is of fundamental impor- tance in various optical applications. We applied a Michelson interferometer and Fabry-Perot-type interference methods to a wafer sample to estimate the difference between two orthogonal indices, Δn, of a LiNbO3 crystal wafer and we compared the results of the two methods. By measuring the transmittance with sample rotation, we obtained a beat pattern between the fringes of the ordinary and the extraordinary light waves. Fitting the node locations, we could determine the Δn value with an uncertainty of 10-3 with both methods. Since the Fabry-Perot method is insensitive to atmospheric turbulence and vibration and is very simple to implement, it alow a quick estimate of the birefringence in optical crystals.

참고문헌 (Reference)

1 D. J. Gettemy, 24 : 2231-, 1988

2 J. F. H. Nicholls, 36 : 8587-, 1997

3 G. D. Gillen, 43 : 2054-, 2004

4 G. J. Edwards, 16 : 373-, 1984

5 M. S. Shumate, 5 : 327-, 1966

6 H. J. Lee, 22 : 487-, 1989

7 "www.metricon.com"

8 "www.atago.net"

9 Sun-Hyun Youn, "Novel Scheme of Polarization-Modulated Balanced Homodyne Detection for Measuring the Polarization State of a Weak Field" 한국물리학회 48 (48): 397-402, 2006

10 최희주, "Michelson 간섭계를 이용한 유리 및 결정 매질의 굴절률 측정" 한국물리학회 53 (53): 489-494, 2006

11 F. L. Pedrotti, "Introduction to Optics" Prentice Hall 1996

12 R. M. A. Azzam, "Ellipsometer and Polarized Light" North Holland 1997

13 H. J. Choi, "Determination of Refractive Indices and Thickness of Solid Optical Medium by Interferometric Method"

14 Baatarchuluun TSERMAA, "Construction of a Broad-Band Optical Isolator by Using an Achromatic Circular Polarizer" 한국물리학회 48 (48): 892-896, 2006