A method based on spatial transformations of multiwavelength digital holograms and the correlation matching of their numerical reconstructions is proposed, with the aim to improve superimposition of different color reconstructed images. This method is based on an adaptive affine transform of the hologram that permits management of the physical parameters of numerical reconstruction. In addition, we present a procedure to synthesize a single digital hologram in which three different colors are multiplexed. The optical reconstruction of the synthetic hologram by a spatial light modulator at one wavelength allows us to display all color features of the object, avoiding loss of details.
© 2012 Optical Society of America
Original Manuscript: December 8, 2011
Revised Manuscript: February 23, 2012
Manuscript Accepted: February 26, 2012
Published: April 23, 2012
P. Memmolo, A. Finizio, M. Paturzo, P. Ferraro, and B. Javidi, "Multi-wavelengths digital holography: reconstruction, synthesis and display of holograms using adaptive transformation," Opt. Lett. 37, 1445-1447 (2012)