- Full text PDF available (5)
In the present work we analyze the Country Profiles, open access data from ISI Thomson Reuter’s Science Watch. The country profiles are rankings of the output (indexed in Web of Science) in different knowledge fields during a determined time span for a given country. The analysis of these data permits defining a Country Profile Index, a tool for diagnosing… (More)
We present a synchronous optical time division multiplexing system capable of fully loaded packet transmission. Novel slot architecture provides network-wide self-synchronization and novel system architecture provides enhanced network reliability. We demonstrate receiver functionality with multilayered interdependent all-optical logic.
We analyze the effect of High Energy Physics Large Collaboration articles, an important example of Big Science and well traceable in Web of Science, on the output and citation records at the country and institutional levels. Furthermore, the effect of these specific bibliometric data on two different university rankings, the SCIMAGO and the THE, is… (More)
II Electro-optic devices permit rapid wavelength selection and high-bandwidth frequency modulation in single-frequency solid state lasers. Laser dynamics limits both the speed ofwavelength selection and the linearity offrequency modulation. The maximum speed of laser mode selection is determined by the buildup ofoscillation from spontaneous emission. For… (More)
Vertical and in-plane electrical transport in InAs/InP semiconductors nanostructures —mainly wires and dots, Fig. 1— have been investigated by conductive atomic force microscopy (C-AFM)  and electrical measurements at low temperatures in processed devices. Spatially resolved current images and localized I-V curves are obtained with C-AFM technique in a… (More)
In this work we analyze the localization of electronic states of low-dimensional systems. We choose a well known strictly one-dimensional chain and an heuristic model for DNA-like molecules, in order to compare two established methods for analyzing the degree of localization, namely the localization length and participation ratio. The potential applications… (More)
We theoretically investigate phosphorene zigzag nanoribbons as a platform for constriction engineering. In the presence of a constriction at one of the edges, quantum confinement of edge-protected states reveals conductance peaks, if the edge is uncoupled from the other edge. If the constriction is narrow enough to promote coupling between edges, it gives… (More)