α-bandlimited diffuser in fractional Fourier optics

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.

• Fecha de publicación: 2016
• Institución: Universidad Tecnológica de Bolívar
• Repositorio: Repositorio Institucional UTB
• Idioma: eng
• OAI Identifier: oai:repositorio.utb.edu.co:20.500.12585/9003
• Acceso en línea: https://hdl.handle.net/20.500.12585/9003
• Palabra clave: Digital holography; Fractional Fourier optics; Fractional Fourier transform; Fresnel diffraction; Numerical interpolation; Speckles; α-bandlimited diffusers; Computer generated holography; Fourier transforms; Holography; Interpolation; Numerical methods; Speckle; Bandlimited; Digital holography; Fractional fourier; Fractional Fourier transforms; Fresnel diffraction; Numerical interpolations; Diffusers (optical)
• Rights: restrictedAccess
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/