Diffraction operators in paraxial approach

William Lasso; Marianela Navas; Liz Añez; Romer Urdaneta; Leonardo Díaz; César O. Torres

doi:10.1117/12.2070745

17 July 2014 Diffraction operators in paraxial approach

William Lasso, Marianela Navas, Liz Añez, Romer Urdaneta, Leonardo Díaz, César O. Torres

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Proceedings Volume 9289, 12th Education and Training in Optics and Photonics Conference; 92890D (2014) https://doi.org/10.1117/12.2070745
Event: 12th Education and Training in Optics and Photonics Conference, 2013, Porto, Portugal

Abstract

Nowadays, research in the field of science education points to the creation of alternative ways of teaching contents encouraging the development of more elaborate reasoning, where a high degree of abstraction and generalization of scientific knowledge prevails. On that subject, this research shows a didactic alternative proposal for the construction of Fresnel and Fraunhoffer diffraction concepts applying the Fourier transform technique in the study of electromagnetic waves propagation in free space. Curvature transparency and Fourier sphere operators in paraxial approximation are used in order to make the usual laborious mathematical approach easier. The main result shows that the composition of optic metaxial operators results in the discovery of a simpler way out of the standard electromagnetic wave propagation in free space between a transmitter and a receptor separated from a given distance. This allows to state that the didactic proposal shown encourages the construction of Fresnel and Fraunhoffer diffraction concepts in a more effective and easier way than the traditional teaching.

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William Lasso, Marianela Navas, Liz Añez, Romer Urdaneta, Leonardo Díaz, and César O. Torres "Diffraction operators in paraxial approach", Proc. SPIE 9289, 12th Education and Training in Optics and Photonics Conference, 92890D (17 July 2014); https://doi.org/10.1117/12.2070745

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KEYWORDS

Spherical lenses

Diffraction

Wave propagation

Fourier transforms

Near field diffraction

Optical spheres

Radio propagation

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