Abstract
An efficient device using a transparent grooved screen and three detector channels is described for measuring the complex coherence factor between two optical beams. The device statically provides both in-phase and quadrature fringe components, the same signals as are customarily available in radio interferometry. The deleterious effects of a nonaplanatism in stellar interferometry are described along with a novel configuration for interferometrically combining two telescopes to provide simultaneously fringes anywhere in the field of view with the goal of optical aperture synthesis. Complex fringe detection also has certain applications in spectral interferometry, and a suitable interferometer with achromatized throughput is described. That interferometer may also be used for distance or thickness measurement.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
