Euclides Almeida

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Optimizing the shape of nanostructures and nano-antennas for specific optical properties has evolved to be a very fruitful activity. With modern fabrication tools a large variety of possibilities is available for shaping both nanoparticles and nanocavities; in particular nanocavities in thin metal films have emerged as attractive candidates for new(More)
Metasurfaces, and in particular those containing plasmonic-based metallic elements, constitute an attractive set of materials with a potential for replacing standard bulky optical elements. In recent years, increasing attention has been focused on their nonlinear optical properties, particularly in the context of second and third harmonic generation and(More)
Conclusions This thesis has investigated the potential of temporal, spatial, spectral and polarisation characteristics of SAR backscatter for the study of biomass and land cover class of tropical forests in two study areas in Brazilian Amazonia. To conclude, the main findings are divided by subject and summarised, starting by underlining the answers to the(More)
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