<title>New Techniques In Holography</title>

Abstract

The past several years have, in a sense, been "shakedown" years for holography. Very little in the way of original concepts have been introduced; rather, the many ideas proposed in previous years have been developed. In the process, many have been discarded. On the whole, holography has shown a rather remarkable viability; it now appears certain that holography will have a secure, although perhaps modest, niche in our technology. Additionally, it must be said that practical successes in holography have thus far not come easily; and most of the major commercial prospects require long-range development. Several of the most promising ones are included in our survey.