Computation of holographic patterns between tilted planes
Author
Esmer, Gökhan Bora
Onural, Levent
Date
2006-05Source Title
Proceedings of SPIE
Print ISSN
0277-786X
Publisher
SPIE - International Society for Optical Engineering
Pages
62521K/1 - 62521K/6
Language
English
Type
Conference PaperItem Usage Stats
150
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110
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Abstract
Computation of the diffraction pattern that gives the desired reconstruction of an object upon proper illumination is an important process in computer generated holography. A fast computational method, based on the plane wave decomposition of 3D field in free-space, is presented to find the desired diffraction pattern. The computational burden includes two FFT algorithms in addition to a shuffling of the frequency components that needs an interpolation in the frequency domain. The algorithm is based on the exact diffraction formulation; there is no need for Fresnel or Fraunhofer approximations. The developed model is utilized to calculate the scalar optical diffraction between tilted planes for monochromatic light. The performance of the presented algorithm is satisfactory for tilt angles up to 60°.
Keywords
Digital holographyPlane wave decomposition
Digital holography
Monochromatic light
Plane wave decomposition
Algorithms
Approximation theory
Computational methods
Diffraction
Image reconstruction
Interpolation
Holography