WVASE® is the most powerful and comprehensive ellipsometric analysis program available. It provides more modeling options than any other program. WVASE is also FAST. It employs state of the art mathematical fitting algorithms for the fastest, most accurate, fits to your data. In addition to modeling and analyzing the ellipsometric data, WVASE also analyzes and/or simulates reflectance and transmission data (Neutron reflectivity data, also, for analysis of very thin films such as organics). WVASE is included with VASE, IR-VASE, and VUV-VASE systems.