Optical Interferometry Part 1: Introduction & ZYGO GPI layout

The video discusses the principles of optical interferometry using glass interfaces and a ZYGO GPI LC interferometer from the 1990s. 0:00 intro 2:13 What can you do with interferometry? 3:06 Optical wave fronts explained 12:41 Inside the ZYGO GPI LC interferometer 20:45 Example of visual fringe evaluation The clip featuring a wave at 3:12 min was taken from this FailArmy video: For much more fails, visit their channel: @failarmy