27 April 2016 α-bandlimited diffuser in fractional Fourier optics
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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.
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Alberto Patiño-Vanegas, Alberto Patiño-Vanegas, Pierre-Emmanuel Durand, Pierre-Emmanuel Durand, Rafael Torres, Rafael Torres, Pierre Pellat-Finet, Pierre Pellat-Finet, "α-bandlimited diffuser in fractional Fourier optics", Proc. SPIE 9889, Optical Modelling and Design IV, 98890K (27 April 2016); doi: 10.1117/12.2228985; https://doi.org/10.1117/12.2228985

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