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espanolEl efecto Talbot es un fenomeno difractivo ubicado desde su origen en la optica Gaussiana, pero cuando la longitud de onda es comparable con el periodo del objeto se considera que este efecto entra en su regimen no paraxial, el cual nuevamente ha despertado el interes por su volumen de aplicacion relacionado con el diseno de objetos y sus efectos curativo que presenta en redes averiadas a esta escala. En esta contribucion presentamos un estudio de este fenomeno a nivel no paraxial (metaxial),usando la teoria escalar de difraccion en representacion de ondas planas para campos periodicos transversal. Para ello se utiliza como objeto periodico una red de amplitud unidimensional de periodo p, iluminada con una onda plana monocromatica de amplitud unitaria y longitud de onda λ, donde p se encuentra entre 1,5 λ y 4,2 λ . EnglishThe Talbot effect is a diffractive phenomenon which was found since its inception in the Gaussian optics, but when the period of the object is comparable with the wavelength is considered entering its non-paraxial regime. There, it has attracted interest for its applications related to the design of objects and their restorative effects posing in damaged gratings on this scale. In this contribution a study of this phenomenon at level non-paraxial (metaxial) is presented by using scalar diffraction theory in plane waves representation for periodic transversal fields. To this end, a one-dimensional amplitude grating of period p is used which is illuminated by a monochromatic plane wave of wavelength λ where p ranges between 1,5 λ and 4,2 λ.

Non-paraxial Talbot effect in one-dimensional gratings with period comparable to the wavelength