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Proceedings Paper

Computer-Generated Polarization Holography
Author(s): Masato Nakajima; Yoshinobu Mitsuhashi
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Paper Abstract

The concept of a computer-generated polarization hologram (CPH) is based on the anisotropic interaction of light with photodichroic crystals. The most unique feature of this technique lies in the realization of phase information recording without the application of the detour phase or the optical path difference effect as used in the conventional technique. Basic principle of information writing and reading scheme using M-centers in alkali halide crystals such as sodium flouride ( NaF ) are descrived, and several technical merits and problems associated with this method are presented. This technique provides a real-time holographic system where accurate recordability and high storage capacity are attainable due to its possibility of recording a calcurated complex amplitude of wavefront only by means of controlling the polarization direction of illuminating beam. We also report on our trially developed automatic hologram making and reading system with the results of its operation experiment, and on discussions concerning the quality of the reconstructed image. We succeeded in completing a full automatic system which is able to make holograms automatically in a short time and in observing a reconstructed image of good quality in real-time.

Paper Details

Date Published: 26 October 1983
PDF: 11 pages
Proc. SPIE 0437, Intl Conf on Computer-Generated Holography, (26 October 1983); doi: 10.1117/12.937134
Show Author Affiliations
Masato Nakajima, Keio University (Japan)
Yoshinobu Mitsuhashi, Electrotechnical Laboratory (Japan)

Published in SPIE Proceedings Vol. 0437:
Intl Conf on Computer-Generated Holography
Sing H. Lee, Editor(s)

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