Solid-state quantum light sources: from semiconductor QDots to 2D crystal QDots.

Ponente: Dr. Carlos Antón Solanas (Dpto. Física de Materiales, Universidad Autónoma de Madrid) will give a talk on single photon emitters and related research, that he performed mostly during his postdocs in C2N-CNRS (2015-2019), University of Würzburg (2019-2020) and University of Oldenburg (2020-2022).

Fecha: 24 de Noviembre 2022.

Hora12.00 hora.

Lugar: Sala B-223, ETSIT-UPM.


Electroacoustic sensors and their functionalization for air quality monitoring in harsh environments.

Ponente: D. José Manuel Carmona Cejas.

Organismo: CEMDATIC.

Fecha: 18 de Noviembre 2022.

Hora:  10.00 hora.

Lugar: Sala B-223, ETSIT-UPM.


Our society needs to face huge problems such as climate change and pollution that represent big threats to public health and to our environment, hence the need of designing and fabricating devices that could be able to detect and quantify some of the most representative chemical species related to these issues. In this talk, we are going to talk about how piezoelectric devices, and more specifically Film Bulk Acoustic Resonators (FBARs), could be an interesting technology to fabricate gas sensors intended to detect a wide variety of chemical species under harsh conditions and a brief approach on their design and fabrication techniques.


Ateneo de Madrid, 2.11.2022 a las 7:30 pm. Ciclo Nanotecnología para la sociedad. Un atípico lugar llamado Sala Blanca: cuna de la vanguardia tecnológica.

Intervienen: Dr. Manuel Abuín y Dra. Yu Kyoung Ryu, ambos pertenecientes al ISOM-UPM. Ciclo Nanotecnología para la sociedad. Un atípico lugar llamado Sala Blanca: cuna de la vanguardia tecnológica. Presenta: Eduardo Sánchez Alcaraz. Modera Eduardo Ríos. Sala Pérez Galdós. 2.11.2022 a las 19.30 h.

Sinopsis: Los aparatos eléctricos, sensores, chips y el desabastecimiento de los mismos cobran especial relevancia actualmente; entender la peculiaridad de los laboratorios donde se fabrican estos dispositivos innovadores ayudar a comprender mejor los retos y el entramado al que nos enfrentamos.En esta conferencia, se mostrará, a la audiencia del Ateneo, las singularidades y complejidades que presenta una Sala Blanca. Se hará hincapié en los requisitos que debe cumplir y las posibilidades que este laboratorio ofrece en el campo de la nanotecnología. Para ello se describirán diferentes etapas de procesado de los dispositivos y las técnicas más innovadoras que se albergan en ella.

Cooling Nanostrips in Spintronics

Ponente: D. Rodrigo Guedas.

Organismo: Instituto de Sistemas Optoelectrónicos y Microtecnología (ISOM), Universidad Politécnica de Madrid.

Fecha: 4 de noviembre 2022.

Hora:  10.00 hora.

Lugar: Sala B-223, ETSIT-UPM.


The proposal of the Race-Track Memory brought a huge rise in spintronics research based on the Spin Transfer Torques (STTs) and Spin Orbit Torques (SOTs). A popular experiment in this field is to move domain walls in nanostrips, having Joule Heating as a byproduct as sizeable current densities are required. When the current density is over 5·10^11 A/m2, Joule heating should be considered for the interpretation of the results as, in most systems, the temperature will rise appreciably. On the other hand, it is rare to find works were the authors deliver current densities larger than 2·10^12 A/m2 even when using short-nanosecond pulses. Here we show a fabrication route which allows to double this current density, even when using microsecond pulses. This consists on adding two more lithographical steps to the fabrication process so that we can cover the nanostrip with a good thermal conductor. We have performed experimental measurements and simulations to show the potential of this idea. We managed to deliver a current density of 3,5·10^12 A/m2 before the breakdown of the device. This strategy should allow experimentalist to push the limits in this type of experiments and perhaps access to new findings in this field.


Formulation, manufacturing and testing of RPUF with improved thermal insulation properties.

Ponente: Dª. Aida Martínez Barja.

Organismo: Instituto de Sistemas Optoelectrónicos y Microtecnología (ISOM), Universidad Politécnica de Madrid.

Fecha: 21 de Octubre 2022.

Hora:  10.00 hora.

Lugar: Sala B-223, ETSIT-UPM.


The objective of this project is to create a low-density thermal insulation material. For this, the improvement of the thermal insulation properties of rigid polyurethane foams (RPUF) is investigated, as well as the decrease of the increases in conductivity that occur over time as a consequence of the aging of the material. For the manufacture of the RPUF specimens, the facilities of the R&D laboratory of the Centro Tecnológico de Grupo Copo (Mos, Pontevedra) and the range of raw materials for rigid foam that they had at that time were provided. The thermal conductivity of the foams obtained was tested in a hot plate conductivity meter in the EEI laboratories. The composition of the test pieces was reformulated based on the conductivity results obtained, in an iterative process in which the conductivity of the RPUF decreased from 0.024 W/mK to 0.019 W/mK. Also managing to decrease the increase in conductivity at 12 weeks after manufacturing, from 0.0058 to 0.0017 W/mK.

Optomechanical resonator sensors for biological applications

Ponente: Dr. Eduardo Gil Santos.

Organismo: Instituto de Micro y Nano Tecnología-CSIC-Instituto de Sistemas Optoelectrónicos y Microtecnología (ISOM), Universidad Politécnica de Madrid.

Fecha: 22 de julio 2022

Hora: 10.00 hora.

Lugar: Sala B-222, ETSIT-UPM.


In the last decades, optomechanical resonators have been the subject of extensive research in a variety of fields, such as communication, signal processing, novel quantum technologies and advanced sensing. This talk focuses on the recent advances performed in the optomechanics field regarding their application as biological sensors. In particular, I will show the different optomechanical devices we have developed in the BioNanoMechanics Laboratory: nanowires, nanodisks and microcapillaries, and the progress results in the project REACT UE SARSNOCM for the detection of Covid-19 in the ambient.  Each of these devices are specifically designed for detecting, characterizing and identifying particular bioentities, mainly depending on their sizes. While microcapillars are ideally suited for human cells applications, nanodisks can applied for bacteria and virus, and nanowires for proteins.  In the near future, optomechanical devices may provide many different applications in the clinical diagnosis and biomedicine fields. Among them, it is worthy to highlight the prompt diagnosis of infectious diseases and cancer, as well as the development of novel drugs, such as, antibiotics.

Brief resume of Eduardo Gil Santos´ Curriculum Vitae

duardo Gil Santos graduated in Physics in 2007 (USC). He joined the Bionanomechanics Laboratory (CSIC) in October 2007 through a national competitive grant (JAE Predoc). He obtained his PhD in Physics in May 2012. At that time, he worked on the development of novel devices, concepts and techniques in order to improve the capabilities of micro- and nano-mechanical sensors, always looking for biological and biomedicine applications.

In February 2013, he joined the Materials and Quantum Phenomena Laboratory (Paris Diderot University, France) thanks to an international competitive grant (Research in Paris). During this time, he learnt theoretical and experimental aspects about optomechanical devices and their applications. He opened a new research line focused on the development of optomechanical resonators for sensing applications.

In November 2016, he came back to the Bionanomechanics Laboratory by means of a European grant (Marie Sklodowska-Curie Actions, Individual Fellowship) with the goal of applying optomechanical devices as biological sensors. Currently, he is a «Ramón y Cajal» researcher working at the Bionanomechanics Laboratory.

In the last years, he has obtained six national project as principal investigator (ComFuturo, RETOS, «Ramón y Cajal», «Intramural Especial», «Fundación Ramón Areces» and «Leonardo») which has enabled him to consolidate his own research line. His main research objective is to develop optomechanical devices as biological sensors, definitively bringing them to the society. Apart from his own projects, he is involved in several European projects (ERC-CoG and FET-proAct, among others).

His scientific work has been published in 1 book chapter, 30 ISI-indexed articles and 4 patents (1 licensed, 2 granted and 1 registered). This work has received 831 citations (WoS), with an h-index of 16 (WoS).