Sheridan J.T.Meuret Y.Wyrowski F.2020-03-262020-03-262016Proceedings of SPIE - The International Society for Optical Engineering; Vol. 988997815106013450277786Xhttps://hdl.handle.net/20.500.12585/9003We 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.Recurso electrónicoapplication/pdfenghttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/conferenceObject10.1117/12.2228985Digital holographyFractional Fourier opticsFractional Fourier transformFresnel diffractionNumerical interpolationSpecklesα-bandlimited diffusersComputer generated holographyFourier transformsHolographyInterpolationNumerical methodsSpeckleBandlimitedDigital holographyFractional fourierFractional Fourier transformsFresnel diffractionNumerical interpolationsDiffusers (optical)info:eu-repo/semantics/restrictedAccessAtribución-NoComercial 4.0 InternacionalUniversidad Tecnológica de BolívarRepositorio UTB571906884597202230088562708969006701664259