Abstract
Solution-deposited polymer films with continuously adjustable refractive index (1.489−1.563) are made by blending in solution two polymers: polymethyl methacrylate (PMMA) and styrene-acrylonitrile copolymer (SAN). The dependence of index of refraction on composition was found to be linear, indicating the compatibility of the two polymers on a molecular basis. In films ~2 μm thick losses less than 0.2 dB/cm were measured. For thicker films (3.5 μm) an increased scattering loss was observed in high SAN content films.
© 1973 Optical Society of America
Full Article | PDF ArticleMore Like This
Leonid M. Goldenberg, Mathias Köhler, Olaf Kahle, and Christian Dreyer
Opt. Mater. Express 10(11) 2987-2997 (2020)
Hilmar Franke
Appl. Opt. 23(16) 2729-2733 (1984)
E. J. Meehan and A. E. Gyberg
Appl. Opt. 12(3) 551-554 (1973)