α-bandlimited diffuser in fractional Fourier optics

Date
2016
Author
Patiño-Vanegas A.
Durand P.-E.
Torres R.
Pellat-Finet P.
University
Universidad Tecnológica de Bolívar
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Abstract
We propose a method for calculating appropriate α-band limited diffusers using the fractional Fourier transform. In order to do this, we implement a method for performing a numerical interpolation in the fractional Fourier domain. Such diffusers with compact support in the Fresnel regime may be used in fractional Fourier optical systems where the use of diffusers produce speckles, e.g. digital holography or optical encryption. Numerical simulations are presented. © 2016 SPIE.
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