Fast numerical simulation of diffraction from large volume holograms
| Autor: | F. Kalkum |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Diffraction
Physics Computer simulation business.industry Fast Fourier transform Holography Physics::Optics Volume hologram Diffraction efficiency Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Optics law Computer Vision and Pattern Recognition business Diffraction grating Envelope (waves) |
| Zdroj: | Journal of the Optical Society of America A. 26:2393 |
| ISSN: | 1520-8532 1084-7529 |
| DOI: | 10.1364/josaa.26.002393 |
| Popis: | An efficient way to numerically calculate diffraction from large volume holograms is developed using the first-order Born approximation. For this, everything except the propagating part of the Green's function is neglected, and the fact that the gratings have a slowly varying envelope is used. The results of the new method are compared with analytical solutions of plane-wave diffraction with absorption, with phase-conjugated readout of a hologram recorded with a point source, and with numerical simulations of shift multiplexing with high-numerical-aperture microscope objectives. We show that the new method gives correct results in all cases and is several orders of magnitudes faster than FFT-based integration. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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