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Proceedings Paper

Multi-Frame Pulse Holography System
Author(s): Yoshitaka Yamamoto
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Paper Abstract

The performance of a framing holography system using a pulse laser is discussed, and two kinds of new methods are proposed. As a holography system has no lens, recorded images using the system are free of image-distortion due to the lens aberration and the out-of focus due to the finitness of depth of focus. Many kinds of lasers are used for the light source of holography. Especially GP ruby laser is usefull for the holography recording of high-speed phenomena. Two basic methods of recording images using the framing holography system are shown below. The first is, the each pulse generated from multiple laser resonators is divided into two parts. A part of them illuminates the hologram from different directions as reference beams, and the others are tied up into a beam to illuminate the object as an object beam. The second is, a pulse train is generated from a single laser resonator and divided into two parts, a half of them continuously illuminates the object as an object beam, the others are used as reference beams of which the incident angles are changed with pulses by electro-optical devices. With this method, each image on a hologram holds its independency and can be reconstructed independently, The first method is favorable, especially in the case that the number of recorded images is 2 or 4. A two-frame recording system is constructed as an example of the first method, and sufficient performance is attained.

Paper Details

Date Published: 7 June 1989
PDF: 9 pages
Proc. SPIE 1032, 18th Intl Congress on High Speed Photography and Photonics, (7 June 1989); doi: 10.1117/12.969168
Show Author Affiliations
Yoshitaka Yamamoto, Tokai university (Japan)


Published in SPIE Proceedings Vol. 1032:
18th Intl Congress on High Speed Photography and Photonics
DaHeng Wang, Editor(s)

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