| dc.creator | GABRIEL CONSTANTINO MARTINEZ NICONOFF | |
| dc.date | 2010-12 | |
| dc.date.accessioned | 2023-07-25T16:23:41Z | |
| dc.date.available | 2023-07-25T16:23:41Z | |
| dc.identifier | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1446 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7806643 | |
| dc.description | It is a known fact that near field diffraction or Fresnel diffraction calculations are difficult to perform exactly. It is in general necessary to make some approximations in order to obtain a more suitable form. In this work, a numerical implementation based on angular spectrum theory for near field diffraction is presented. The method uses Fast Fourier Transforms (FFT), and it turns out to be accurate and fast. In order to show the capabilities of the method, diffraction near field for a circular aperture and a spiral slit are studied. Numerical and experimental results are shown. This method could be useful to implement pc based physical optics learning. | |
| dc.description | Se sabe que los cálculos de difracción de campo cercano o de Fresnel son difíciles de realizar de manera exacta. En general, es necesario realizar aproximaciones a fin de obtener expresiones con formas más manejables. En el presente trabajo se presenta una implementación numérica del cálculo del campo cercano usando la teoría del espectro angular. El método emplea la transformada rápida de Fourier (FFT) lo que le permite ser rápido y preciso. Con el propósito de mostrar la eficiencia del método, se presenta el estudio de la difracción producida por una abertura circular y por una rendija espiral. Se muestran los resultados numéricos y experimentales. Creemos que el presente método puede ser útil en la enseñanza de la óptica física en cursos soportados en el uso de pc. | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Revista Mexicana de Física E | |
| dc.relation | citation:Carbajal Domínguez, A., et al., (2010). Numerical calculation of near field scalar diffraction using angular spectrum of plane waves theory and FFT, Revista Mexicana de Física E. Vol. 56(2):159–164 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/Inspec/Scalar wave diffraction | |
| dc.subject | info:eu-repo/classification/Inspec/Fresnel diffraction | |
| dc.subject | info:eu-repo/classification/Inspec/Near field diffraction | |
| dc.subject | info:eu-repo/classification/Inspec/FFT | |
| dc.subject | info:eu-repo/classification/Inspec/Helmholtz equation | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/22 | |
| dc.subject | info:eu-repo/classification/cti/2209 | |
| dc.subject | info:eu-repo/classification/cti/2209 | |
| dc.title | Numerical calculation of near field scalar diffraction using angular spectrum of plane waves theory and FFT | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/acceptedVersion | |
| dc.audience | students | |
| dc.audience | researchers | |
| dc.audience | generalPublic | |
