%0 Journal Article %T Characterization of optical parameters of an azo-dye-doped polymer PMMA thin film from spectroscopic ellipsometry %A Wang, Guangbin %J Proceedings of SPIE %V 3806 %N 1 %P 41-45 %@ 0277-786X %D 1999-11-30 %I SPIE %~ DeepDyve