Open AccessFast calculation method for cylindrical computer-generated holograms
Author(s) -
Yusuke Sando,
Masahide Itoh,
Toyohiko Yatagai
Publication year - 2005
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.001418
Subject(s) - fast fourier transform , convolution (computer science) , wavefront , optics , holography , diffraction , point spread function , computer science , spatial frequency , convolution theorem , fourier transform , point (geometry) , fresnel diffraction , holographic display , surface (topology) , circular convolution , algorithm , physics , mathematics , geometry , fourier analysis , mathematical analysis , artificial intelligence , fractional fourier transform , artificial neural network
We propose a fast calculation method for diffraction to nonplanar surfaces using the fast-Fourier transform (FFT) algorithm. In his method, the diffracted wavefront on a cylindrical surface is expressed as a convolution between the point response function and the spatial distribution of objects wherein the convolution is calculated using FFT. The principle of the fast calculation and the simulation results are presented.