Digital correlation holograms implemented on a joint transform correlator
نویسندگان
چکیده
A system of two separated computer-generated holograms termed digital correlation hologram (DCH) is proposed and demonstrated. In each hologram a different computer-generated complex function is coded. The reconstructed image is obtained as a result of a spatial correlation between the hologram s two parts. The correlation between the two sub-holograms is implemented on a modified joint transform correlator. When the double-elements hologram is displayed on the correlator input plane, and illuminated by a plane wave, a desired image is constructed on part of the output plane. Experimental results are shown and possible applications of the DCH are discussed. 2003 Published by Elsevier B.V. PACS: 42.30.Kq; 42.40.Jv; 42.30.Va
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تاریخ انتشار 2003