Abstract

A new algorism of computer holography utilizing the anisotropic interaction of light with photodichroic materials is proposed. The most unique feature of this technique lies in the realization of phase information recording without the use of detour phase or optical path difference effect. Basic principles of information recording and reconstruction scheme using M centers in alkali halide crystals such as sodium fluoride are described in detail, and several technical merits and problems associated with the proposed algorism are discussed. This new method will provide a real-time holographic system where accurate recordability and high storage capacity are attainable due to its possibility of recording a calculated complex amplitude of wavefront only by means of controlling the polarization direction of illuminating beam.

© 1976 Optical Society of America

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