Abstract
An experimental arrangement is described for determination of refractive indices n and extinction coefficients k of strongly absorbing liquids and solids over a wide spectral region. The reflectivity of parallel polarized light vs angle of incidence is measured, and the optical constants are calculated from the minimum parallel reflectivity and the corresponding Brewster angle. The accuracy of n and k determination is analyzed. The refractive indices and extinction coefficients of 0.4-M rhodamine 6G in methanol are presented around the S1 absorption band.
© 1986 Optical Society of America
Full Article | PDF ArticleMore Like This
W. Leupacher and A. Penzkofer
Appl. Opt. 23(10) 1554-1558 (1984)
M. Schäffner, X. Bao, and A. Penzkofer
Appl. Opt. 31(22) 4546-4552 (1992)
Yanfei Zheng and Kazuo Kikuchi
Appl. Opt. 36(25) 6325-6328 (1997)