Title :
Phase conjugation, holography, and imaging through inhomogeneous media
Author :
Leith, E. ; Arons, E. ; Chen, H. ; Chen, Y. ; Dilworth, D. ; Lopez, J. ; Shih, M. ; Sun, P.-C.
Author_Institution :
Michigan Univ., Ann Arbor, MI, USA
Abstract :
Holography may be carried out in a wide a variety of materials and devices, such as photographic film, photopolymers, CCD cameras and nonlinear crystals. The commonality of these is the nonlinear characteristic that results in the mixing of two light beams to produce a difference term. The bases for the holographic methods to image through inhomogeneities are varied. The basis may be the generation of a conjugate field, as in holographic phase conjugation. It may be the time averaging effect of the holographic process. It may be the gating effect of short pulse light, or equivalently, the temporal coherence function. Or, it may be the light source spatial coherence function. We offer examples for each category
Keywords :
CCD image sensors; high-speed optical techniques; holography; light coherence; light propagation; multiwave mixing; nonlinear optics; optical films; optical images; optical phase conjugation; optical polymers; CCD cameras; conjugate field; difference term; gating effect; holographic methods; holographic phase conjugation; holographic process; holography; imaging; inhomogeneities; inhomogeneous media; light beam mixing; light source spatial coherence function; nonlinear characteristic; nonlinear crystals; phase conjugation; photographic film; photopolymers; short pulse light; temporal coherence function; time averaging effect; Charge coupled devices; Charge-coupled image sensors; Crystalline materials; Crystals; Holography; Light scattering; Nonhomogeneous media; Optical imaging; Optical scattering; Spatial coherence;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1993. LEOS '93 Conference Proceedings. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-1263-5
DOI :
10.1109/LEOS.1993.379114
