Holography and its application to acoustic imaging

This paper briefly reviews some aspects of holography and its application to acoustic imaging with an emphasis on concept. Included age discussions of the identity of holography, the principle of optical holography, holography applied to the acoustic domain and holography by linear detection, the applications of optical and acoustic holography, the concept and front-end embodiment of acoustic imaging systems that can be considered holographic, and the limitations of acoustic holography. This paper is intended to be tutorial and to provide discussions on relevant topics not covered by other papers in this issue on the subject of holography.