Menezes, Jacson Weber deCescato, Lucila Helena DeliesposteCarvalho, Edson José deBraga, Edmundo da Silva2012-11-292012-11-292006MENEZES, J. W. et al. Recording different geometries of 2D hexagonal photonic crystals by choosing the phase between two-beam interference exposures. Optical Express, v. 14, n. 19, p. 8578-8583, 2006. Disponível em: <https://www.osapublishing.org/oe/abstract.cfm?uri=oe-14-19-8578>. Acesso em: 29 nov. 2012.10944087http://www.repositorio.ufop.br/handle/123456789/18752D hexagonal patterns can be generated by the superimposition of two or three fringe patterns that have been formed by two-wave interference and that have rotations of 60o between them. Superimposing three exposures solves the problem of asymmetry in the cross section of structures, which is caused by double exposure. The resulting structure, however, depends on the phase shift of the third fringe pattern in relation to the previous two. We propose a method for controlling the phase shift, and we demonstrate that three different lattice geometries of hexagonal photonic crystals can be recorded when the phase is chosen.en-USArtigo publicado em periodicoO periódico Optics Express permite o depósito da versão PDF do editor em Repositório Institucional. Fonte: Sherpa/Romeo <http://www.sherpa.ac.uk/romeo/search.php?issn=1094-4087>. Acesso em: 21 nov. 2013.