This ellipsometer was build in our Lab during 2019 and 2020 in joint work with visiting student Subiao Bian (Huaqiao University, China). Has several features: compensation using Fresnel Rhombs and discrete angle positioning that makes it an interesting device. The manuscript has been selected for an Editor’s Pick in Applied Optics.
https://www.osapublishing.org/ao/abstract.cfm?uri=ao-60-16-4964