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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Control experimental de la propagación de luz en redes fotónicas

Real Elgueda, Bastián Maximiliano. 08 1900 (has links)
Magister en Ciencias con mención en Física / En esta tesis se estudia, te orica y experimentalmente, la propagaci on de luz en distintas redes fot onicas. Experimentalmente se han implementado dos montajes; uno capaz de crear redes fot onicas mediante la t ecnica de inducci on en un cristal fotorefractivo, y otro, capaz de crear patrones arbitrarios de luz para excitar redes fot onicas fabricadas con la t ecnica de escritura de l aser de femtosegundos. Con estos montajes, hemos podido observar importantes fen omenos en el area de sistemas discretos y, tambi en, hemos llevado a cabo la primera observaci on de estados localizados lineales pertenecientes a una banda plana en cualquier sistema f sico. Por ultimo, se ha estudiado te orica y num ericamente una red fot onica de Lieb con no linealidad tipo Kerr, para el caso de una red homog enea y una binaria. / In this thesis we study, theoretically and numerically, light propagation throughout di erent photonic lattices. Experimentally, we have developed two setups, one of them is able to create photonic lattices by means of an induction technique using a photorefractive crystal, and the other one is able to generate arbitrary light patterns to study photonic lattices fabricated using the femtosecond laser writing technique. With these setups, we have been able to observe fundamental phenomena in discrete systems area, and we have also led to the rst experimental observation of linear localized modes belonging to a at band in any physical system. Finally, Lieb photonic lattice with Kerr nonlinearity has been studied theoretically and numerically for the homogeneous and binary lattice case. / Beca de Pedagogia de Laboratorio del Departamento de F sica de la Universidad de Chile y a la Beca para estudiantes otorgada por el Núcleo Milenio de Óptica Avanzada RC-130001

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