7 June 1989 Applications Of High Speed Pulsed-Laser Interferometry
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Proceedings Volume 1032, 18th Intl Congress on High Speed Photography and Photonics; (1989) https://doi.org/10.1117/12.969130
Event: 18th International Congress on High Speed Photography and Photonics, 1988, Xi'an, Shaanxi, China
Abstract
Recently a new class of phase-shifting interferometers have been developed that allow us to measure optical phases with high temporal variations. A stationary diffraction grating plays the key role to split the input beam into 0, +1, and -1 orders and simultaneously to introduce a phase shift among the multiplexed beams. This simultaneous phase shift provides the capability for instantaneous measurement of optical wavefronts by using pulsed-lasers. The theoretical basis for the phase shifting interferometry will be introduced briefly. Also results of laboratory measurements will be shown for examples such as the wavefront quality of a pico-second pulsed-laser beam, surface figure measurement of an actuated deformable mirror, and the air turbulence induced by high pressure air flow at different temperatures and flow speeds.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Osuk Y. Kwon, Dean M. Shough, "Applications Of High Speed Pulsed-Laser Interferometry", Proc. SPIE 1032, 18th Intl Congress on High Speed Photography and Photonics, (7 June 1989); doi: 10.1117/12.969130; https://doi.org/10.1117/12.969130
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