2 research outputs found
Geology of the FalcĂłn Basin (NW Venezuela)
<p>This paper presents a geological map and cross-section of the Falcón Basin based both on published and unpublished work and on new data collected in the northern and southern basin margins. The geological map covers an area of 4600 km<sup>2</sup> at 1:100,000 scale. The cross-section is oriented NNW-SSE, traversing perpendicular to the main structures. In general, the structure of the study area results from the inversion of a graben (Oligocene-early Miocene back-arc basin), that started in the middle Miocene due to the convergence between the Caribbean and South American plates. The map, the cross-section and the observations made in the field have been used to generate a tectonostratigraphic reconstruction of the Falcón Basin. The Oligocene-early Miocene sedimentary succession mapped and described is relevant to the hydrocarbon exploration in the Caribbean and in the Gulf of Venezuela, where new hydrocarbon resources have recently been discovered (i.e. Perla gas field).</p
Rare-Earth Monopnictide Alloys for Tunable, Epitaxial, Designer Plasmonics
We demonstrate that
plasmonic response can be tuned spectrally
via the alloy composition of an epitaxial semimetallic film. Specifically,
attenuated total reflectance studies show that the surface plasmon
resonance of rare-earth monopnictide La<sub><i>x</i></sub>Lu<sub>1–<i>x</i></sub>As alloy films can be tuned
across the mid-IR, while lattice-matching to technologically important
substrates. The electrical properties are a strong function of the
composition, which, in turn, manifests as tunability of the optical
properties. The ability to produce tunable (semi)Âmetals that can be
epitaxially integrated with III–V emitters and absorbers is
expected to enable a new generation of novel nanophotonic device architectures
and functionality