dorsal/arxiv
View SchemaWide angle near-field diffraction and Wigner distribution
| Authors | J. B. Almeida, V. Lakshminarayanan |
|---|---|
| Categories | |
| ArXiv ID | physics/0305026 |
| URL | https://arxiv.org/abs/physics/0305026 |
| DOI | 10.1078/0030-4026-00272 |
| Journal | Optik 114 (7): 333-335 (2003) |
Abstract
Free-space propagation can be described as a shearing of the Wigner distribution function in the spatial coordinate; this shearing is linear in paraxial approximation but assumes a more complex shape for wide-angle propagation. Integration in the frequency domain allows the determination of near-field diffraction, leading to the well known Fresnel diffraction when small angles are considered and allowing exact prediction of wide-angle diffraction. The authors use this technique to demonstrate evanescent wave formation and diffraction elimination for very small apertures.
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"abstract": "Free-space propagation can be described as a shearing of the Wigner\ndistribution function in the spatial coordinate; this shearing is linear in\nparaxial approximation but assumes a more complex shape for wide-angle\npropagation. Integration in the frequency domain allows the determination of\nnear-field diffraction, leading to the well known Fresnel diffraction when\nsmall angles are considered and allowing exact prediction of wide-angle\ndiffraction. The authors use this technique to demonstrate evanescent wave\nformation and diffraction elimination for very small apertures.",
"arxiv_id": "physics/0305026",
"authors": [
"J. B. Almeida",
"V. Lakshminarayanan"
],
"categories": [
"physics.optics"
],
"doi": "10.1078/0030-4026-00272",
"journal_ref": "Optik 114 (7): 333-335 (2003)",
"title": "Wide angle near-field diffraction and Wigner distribution",
"url": "https://arxiv.org/abs/physics/0305026"
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