A numerical simulation model to facilitate the understanding by Eduardo E Zurek Affiliation: Departamento de Ingeniería de

By Eduardo E Zurek Affiliation: Departamento de Ingeniería de Sistemas, Universidad del Norte, Km. 5 Vía a Puerto Colombia, Barranquilla, Colombia; Wilfrido A Moreno Affiliation: Electrical Engineering Department, University of South Florida, Tampa, FL 336

This paper introduces a brand new device to procedure the consequences of a diffraction grating and its interplay with different optical and digital parts in a gentle wavelength research approach. The model's theoretical historical past is defined. This version is meant for tutorial reasons and it truly is spoke of a miniaturized spectrophotometer. © 2011 Wiley Periodicals, Inc. Comput Appl Eng Educ 22:187-194, 2014; View this Read more...

summary: This paper introduces a brand new software to procedure the results of a diffraction grating and its interplay with different optical and digital parts in a mild wavelength research method. The model's theoretical history is defined. This version is meant for tutorial reasons and it truly is observed a miniaturized spectrophotometer. © 2011 Wiley Periodicals, Inc. Comput Appl Eng Educ 22:187-194, 2014; View this text on-line at wileyonlinelibrary.com/journal/cae; DOI 10.1002/cae.20544

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Extra resources for A numerical simulation model to facilitate the understanding of the properties of a diffraction grating

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13) It is obvious that we can observe an interference pattern in both reflection and transmission. If the angle of incidence is very small and the plate is fairly large, an infinite number of beams take part in the interference. 8 Multiple-beam formation in a plane parallel plate. 16) where T1 = |t1 |2 , T2 = |t2 |2 , and R1 = |r1 |2 , R2 = |r2 |2 are the transmittances and reflectances of the two surfaces of the plate; ψ1 and ψ2 are the phases acquired by the wave on reflection; and Iin = |a|2 is the intensity of the incident wave.

Diffractionless solutions of the Helmholtz wave equation in the form of Bessel functions constitute Bessel beams. A Bessel beam propagates over a considerable distance without diffraction. It also has a “healing” property in that it exhibits selfreconstruction after encountering an obstacle. A true Bessel beam, being unbounded, cannot be created. However, there are several practical ways to create a beam that is a close approximation to a true Bessel beam, including diffraction at an annular aperture, focusing by an axicon, and the use of diffractive elements (holograms).

These beams can be generated using either axicons or holograms. Diffractionless solutions of the Helmholtz wave equation in the form of Bessel functions constitute Bessel beams. A Bessel beam propagates over a considerable distance without diffraction. It also has a “healing” property in that it exhibits selfreconstruction after encountering an obstacle. A true Bessel beam, being unbounded, cannot be created. However, there are several practical ways to create a beam that is a close approximation to a true Bessel beam, including diffraction at an annular aperture, focusing by an axicon, and the use of diffractive elements (holograms).

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