Translator Disclaimer
16 July 1986 Multichannel Grating Phase-Shift Interferometers
Author Affiliations +
Proceedings Volume 0599, Optics in Engineering Measurement; (1986)
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France
When a beam is focused into grating elements, it is diffracted and phase-shifted. These fundamental characteristics of gratings have been found very useful for converting conventional interferometers into real-time wavefront sensors for digital computer control and data analysis. The principle of phase-shifting interferometry has been combined with above characteristics of the gratings to produce instantaneous multichannel interferograms. Attempts have been made successfully to apply these principles to three well-known interferometers, (1) the point-diffraction interferometer, (2) the radial-shear interferometer, and (3) the double-frequency crossed-grating lateral-shear interferometer. The advantages of these new approaches are simplicity and versatility, in particular, these wavefront sensors can measure wavefronts from both continuous and pulsed sources. Optical principles and the laboratory results will be shown.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Osuk Y. Kwon and Dean M. Shough "Multichannel Grating Phase-Shift Interferometers", Proc. SPIE 0599, Optics in Engineering Measurement, (16 July 1986);


Applications Of High Speed Pulsed-Laser Interferometry
Proceedings of SPIE (June 07 1989)
Real-Time Radial-shear Interferometer
Proceedings of SPIE (January 16 1986)
High-Speed, Pulsed-Laser Interferometry
Proceedings of SPIE (January 01 1987)

Back to Top