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Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Davis, Jeffrey A. ; Ramirez, Laura | The International Society for Optical Engineering (SPIE) | 2004We study experimentally and by numerical simulation the Fresnel diffraction on the recently introduced fractal zone plates (ZPs) associated with Cantor sets'. The focusing properties of these ZPs and the evolution of the intensity patterns at th[...]texto impreso
Rodrigo Martín-Romo, José Augusto ; Alieva, Tatiana Krasheninnikova ; Calvo Padilla, María Luisa | The International Society for Optical Engineering (SPIE) | 2006Wide application of the laser beams in science, technology and biomedicine demands the generation of the beams with desirable structure. In particular for optical trapping the beams with high transversal gradient of intensity distribution or dou[...]texto impreso
Martínez Antón, Juan Carlos ; Siegmann, Philip ; Sánchez Brea, Luis Miguel ; Gómez Pedrero, José Antonio ; Canabal Boutureira, Héctor ; Bernabeu Martínez, Eusebio | The International Society for Optical Engineering (SPIE) | 2001We have developed a prototype for in-line detection of surface defects in metallic wires, specially for scratches. A simple geometrical relationship between surface topography and conical reflection, permits to correlate the defects with intensi[...]texto impreso
Torcal Milla, Francisco José ; Sánchez Brea, Luis Miguel ; Bernabeu Martínez, Eusebio | The International Society for Optical Engineering (SPIE) | 2009Diffraction gratings are one of the most used elements in optics and even in other fields of science. They are used also like part of measurement devices in scientific and industrial applications. As it is well known, self-imaging effect appears[...]
