Javier Alda obtained his Licenciature in Science from the Faculty of Science of the University of Zaragoza in1985. That year he joined University Complutense of Madrid where he graduated as PhD in Physics in 1988. Since 2010 he is Full Professor in Optics after being through a whole tenured track granted in 1989, when he obtained his first permanent position at the University Complutense of Madid. His academic activity has also involved the supervision of 7 PhD dissertations. His current research interes is in Optical antennas and resonant optics. He has contributed to the understanding of these structures in the infrared to control their spectral response, their polarization characteristics, and their capability to change and modulate the optical phase. These contributions have served to the better understanding of the mechanism at work in the transduction of the currents coupled to the antenna structure. In the last years, has also worked in the analysis of the thermoelectric response of optical antennas, including arrangements capable of polarimetric analysis. In the last two years Prof. Alda has been steering his research in this topic towards the use of resonant structures to improve the performance of solar cells, plasmonic sensors, and resonant optics. He is a Fellow member of SPIE and a senior member of Optica.