%0 Journal Article %T Determination of optical properties by variation of boundary conditions %A Nickell, Stephan %A Kohl-Bareis, Matthias %A Boecker, Dirk %J Proceedings of SPIE %V 3194 %N 1 %P 254-261 %@ 0277-786X %D 1998-01-01 %I SPIE %~ DeepDyve