{"version":"1.0","type":"link","title":"Point diffraction interferometer - Newikis","description":"A point diffraction interferometer (PDI) is a type of common-path interferometer. Unlike an amplitude-splitting interferometer, such as a Michelson interferometer, which separates out an unaberrated beam and interferes this with the test beam, a common-path interferometer generates its own…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://upload.wikimedia.org/wikipedia/en/c/cd/Common_path_PDI.png","thumbnail_width":359,"thumbnail_height":269}