High-speed time-resolved holographic interferometer using solid state shutters

Roberto G. Racca; John Marks Dewey

doi:10.1117/12.23983

1 April 1991 High-speed time-resolved holographic interferometer using solid state shutters

Roberto G. Racca, John Marks Dewey

Proceedings Volume 1358, 19th Intl Congress on High-Speed Photography and Photonics; (1991) https://doi.org/10.1117/12.23983
Event: 19th International Congress on High-Speed Photography and Photonics, 1990, Cambridge, United Kingdom

Abstract

The high speed recording of shock waves is presently undertaken by a solid-state, time-resolved holographic interferometer in which spatial frequency multiplexing is used to separate the holographically recorded images. The reference beam is constantly divided into n branches of equal brightness by a stack of suitably graded beam splitters, so that each branch is aimed at the film from a different angle and individually shuttered by an electrooptic light valve. This arrangement allows complete freedom to have any or all of the reference beams reach the film for a given pulse of the laser. The implications of these capabilities for shock-tube studies are explored.

Citation Download Citation

Roberto G. Racca and John Marks Dewey "High-speed time-resolved holographic interferometer using solid state shutters", Proc. SPIE 1358, 19th Intl Congress on High-Speed Photography and Photonics, (1 April 1991); https://doi.org/10.1117/12.23983

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