The use of a phase-modulated reference wave for the electronic heterodyne recording and processing of a hologram is described. Heterodyne recording is used to eliminate the self-interference terms of a hologram and to create a Leith-Upatnieks hologram with coaxial object and reference waves. Phase modulation is also shown to be the foundation of a multiple-view hologram system. When combined with hologram scale transformations, heterodyne recording is the key to general optical processing. Spatial filtering is treated as an example.
© 1978 Optical Society of America
A. J. Decker, Yoh-Han Pao, and P. C. Claspy, "Electronic heterodyne recording and processing of optical holograms using phase modulated reference waves," Appl. Opt. 17, 917-921 (1978)