Numerical holography computing by using the fractional Fourier transform: a ping-pong-pang algorithm

R. Torres; Pierre Pellat-Finet; Yezid M. Torres Moreno

doi:10.1117/12.591747

21 October 2004 Numerical holography computing by using the fractional Fourier transform: a ping-pong-pang algorithm

R. Torres, Pierre Pellat-Finet, Yezid M. Torres Moreno

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.591747
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

Abstract

An iterative algorithm for computing holograms is presented: it is based on the fractional order Fourier transform. It allows us to generate diffraction patterns which are not in the Fourier plane. It also makes possible the design of computer generated holograms providing two beforehand given illumination patterns on two preselected planes. Holograms have been calculated according to the proposed method and have been engraved by photolithography. Experimental results are given. A speckle reduction technique is also explained.

Citation Download Citation

R. Torres, Pierre Pellat-Finet, and Yezid M. Torres Moreno "Numerical holography computing by using the fractional Fourier transform: a ping-pong-pang algorithm", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.591747

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