A highly successful and dynamic Research and Development Physicist and Engineer with a broad progressive experience. A goal-orientated and focused leader with the capability to work under pressure and produce results. Has a strong commitment to excellence and is a pro-active, strategic troubleshooter. A high-impact professional with a proven ability to deliver innovative and forward thinking results right across the research and development spectrum.

Biography included:
 Marquis Who’s Who In The World 2009 Edition (U.S.A.)
 2000 Outstanding Intellectuals of the 21st Century – 2010 (U.K.)

ICT Skills
 Programming:
Matlab, Java, Delphi, C/C++, Advanced Visual Systems (AVS), Visual Basic, T/EC Rules (Prolog), AIX Shell Script, Labview
 Management Solutions:
Tivoli Tools version 3.6.X

Teledyne DALSA B.V. R&D Department [The Netherlands] Research Scientist Feb 2013 – Present

Digital X-Ray image detectors for medical applications:
 I learned the methodology of X-Ray detector evaluation tests that are necessary to check the performance of flat panel light detectors and digital cameras. These evaluations were made using Labview programs, leading me to face new multiple problems derived from new detector designs. As a result, I mastered many aspects of hardware and image and video Digital Signal Processing.
 The company is looking for new suppliers of certain components. I worked closely with some suppliers in order to help them to successfully develop their components to the required tight specifications. The suppliers were at an early stage in the development of the components when I started working in DALSA.
 The X-Ray detectors are challenged by the environmental impact (temperature and most importantly humidity) that lead them to premature degradation. My main contribution included:
o Perform environmental tests (at certain climate conditions) on the devices and trace the evolution of the main optical performance parameter indicators, which are, mainly, Light Output, MTF, DQE, Lag, Gain hysteresis and defects mainly analysed by means of optical microscopy and defect image detection. From these data, statistical analyses were performed to establish whether the devices were within specifications.
o Identify and explain the advantages and weaknesses of the current in-house environmental protection.
o To improve the in-house environmental protection, I innovated by proposing a new alternative solution. Feasibility studies were carried out.
o Other components were also sensitive to environmental effects and the impact had to be carried out by mechanical tests resulting in new evaluations of those other components, for which I established the durability of those components and the possible environmental issues from degradation.
 Other contributions were developed to improve testing techniques of the devices:
o In order to detect certain type of defects of crucial components, I developed a new optical image analysis, based in visible light instead of X-Ray, leading to a exclusive detection of those defects in a fast way.
o Performance testing of samples from suppliers (smaller than detector size) had to be tested manually on a regular basis. I developed a new automated methodology that could lead to more repeatable and accurate testing results. For this work I had to realise my first mechanical designs (from which I learnt relevant issues such tolerances, constraints, design and manufacturability) in the industry and I had to manage a small number of software and mechanical experts.
o The X-Ray detectors are also prone to degrade upon accumulative X-Ray radiation over time. I had to evaluate the degradation of the most sensitive components by in-house experiments and also at the Reactor Instituut Delft (RID) in TU Delft, to include this feature when assessing different materials suppliers.


ASML Netherlands B.V. [The Netherlands] Design Engineer Development & Engineering Department Feb 2011 – Feb 2013

Lithographic tools and related metrology systems and techniques:
 I learned many key aspects of a large high-tech industry:
o Trainings such as Very Large Scale Integration by Imec, company protocols, etc.
o Work in the clean room at an industrial level.
o Team work with different groups having different expertise, technical documentation writing, reporting, meeting and presentation skills were improved.
o Commitment, meeting deadlines and flexibility.
o Improve the state of the art of metrology techniques applied to lithography (alignment and overlay marks, testing in cleanroom, dealing with customers’ issues, process and measurement optimization).
o Matlab programming for application development was mastered.
 Innovative contribution to develop new marks for wafer alignment and overlay (matching of printed layers on top of others). These marks were intended for lens qualification, and were designed to overcome the problem of the standard alignment and overlay marks (small number of lines per length, low resolution) not having the same properties as product features (high resolution, many lines per length). This was solved by creating 2 new types of marks:
o Type 1, which were printed in two steps: using high and low resolution lines.
Work on this type of marks led to a Poster contribution to the ASML Technology Conference 2012.
o Type 2, which were printed in several steps, and using only high resolution lines with certain properties so that small variations in alignment and overlay were enhanced and multiplied when measured; therefore, the limits of the detection of variation in alignment and overlay could be lowered. I contributed by designing new marks for different product situations, documenting the test specification and designing the reticle (mask) for printing these marks.
The design of these marks was patented (US Patent P-3862-000-US).
 Overlay optimization to correct fingerprint of the lithography machine. As wafer processing leads to wafer deformation, the intention was to estimate the fingerprint by applying a fitting process model and then optimize by applying high order corrections models. I contributed by analyzing large amounts of customers data and improving the optimization models by solving modules functionality problems and extending capabilities.
This work was presented in a Poster contribution to the ASML Technology Conference 2012.


Het Nederlands Kanker Instituut - Antoni van Leeuwenhoek Ziekenhuis (NKI-AvL) Radiotherapy Department [The Netherlands] Postdoctoral Researcher Feb 2009 – Feb 2011

Imaging and dosimetry for Intensity-modulated radiation therapy (IMRT) applied to cancer treatment:
 In radiotherapy for cancer treatment, new CCD cameras, i.e. Electronic Portal Imaging Devices (EPID), are used to estimate the radiation delivered to the patient by placing them at the exit side of the treatment beam of a patient. The images obtained have information about the radiation dose, which can be used to validate the dose delivered to the patient.
o The project I worked on consisted in calculating the 3-D dose distribution delivered to a patient from the 2-D EPID image by using a 3-D reconstruction model. My main contribution was to modify this model so that a set of measurements necessary for each patient treatment could be substituted by a theoretical approach allowing a huge reduction of time of dose verification. This algorithm I developed was a prerequisite and paved the way to the implementation of a new state of the art treatment technique, so called Volumetric-Modulated Arc Therapy (VMAT), being the Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital the first institution in the world to implement it.
o I also collaborated on another project based on lung cancer; this technique which was not initially included in the clinic due to the fact that this model would not take into account tissue inhomogeneities, that happen in lung. The new method took the images as if the patient consisted of water, done by multiplying the measured EPID image with the ratio of 2 reconstructed transmission images (the unit density and inhomogeneous tissue). This method (aka aqua vivo) allowed fast dose verification of lung cancer treatments.
 I developed my programming skills, especially in Delphi and C/C++, applied to algorithm development applied to imaging techniques.
 I proved my flexibility by working in an entirely new subject for me, being able to contribute to 2 high impact factor publications and 1 International Conference presentation.


Universidad Autónoma de Madrid Dept of Applied Physics [Spain] Collaborator Sept 2008 – Jan 2009

“Design, fabrication and characterisation of GaInAsN/GaInAsP/GaAs based quantum well lasers” project:
 As a collaborator, I performed the following tasks in a multirole position:
o Contribute to the design of optical cavities embedded in multi quantum well lasers structures, and also fabrication of those structures using Molecular Beam Epitaxy (MBE), and dynamizing all tasks required.
o My main contribution was performing and designing experimental setups for optical measurements on the semiconductor lasers fabricated, namely Photoluminescence (PL) and X-Ray Diffraction (XRD).


Universidad Politécnica de Madrid [Spain] Postdoctoral researcher Oct 2004 – Feb 2008

2 project appointment

Project 2: Laser Centre U.P.M.:
“Theoretical modelling, development and instrumentation of industrial applications from high power/intensity lasers” project:
 Mainly working in Laser Shock Processing (LSP), which is a promising surface treatment technique, in which metallic target is irradiated with a short, intensive laser pulses in order to induce plastic deformation and surface strengthening by the shock wave generated when high-pressure plasma rapidly expands over the material.
o My contribution was to work on a model for numerical simulation of the expansion of the plasma generated by the laser pulses and the subsequent material compression applied to the alloys subject to LSP. The residual stress, influence of laser peak energy, shock penetration, deformation of the metal were analysed in the laboratory. Finally, the mechanical properties improvements induced by the treatment were discussed.
o I gained expertise in the use of lasers for industrial applications (cutting, welding, marking), such as CO2, Nd:YAG and Excimer lasers.
o I obtained experience in the use of simulation software packages, such as Prism Spect, which was used to simulate the plasma generated under LSP conditions.
 The Laser Centre was also interested in expanding their expertise towards to spectroscopic applications such as remote sensing of environmental gases and pollutants in the atmosphere. Quantum Cascade Lasers (QCLs) are proven useful for this kind of detection, due to their high optical power output, tuning range and room temperature operation. I was in charge of opening a new line of research for spectroscopic analyses, detection and remote diagnose of ambient pollutants in automotive environment, based on QCLs.
 I gained experience and flexibility by working in a not directly related area with respect to my previous expertise, and was able to deliver results as 1 publication, 1 book chapter and 3 congress contributions.

Project 1: Institute for Systems based on Optoelectronics and Microtechnology (ISOM):
"New Generation of GaN-based sensor arrays for nano- and pico-fluidic systems for fast and reliable biomedical testing (GaNano)" project:
 Study the feasibility and development of fast detectors of chemical substances from small samples. Those systems were intended to analyse biological substances in aqueous nano and pico droplets. GaN based semiconductor devices were selected for this task, due to their lack of degradation under various samples, such acidic or alkaline.
o My contribution was to work on (Al,Ga,In)N-based compound semiconductor detectors, for both UV and visible detection to detect dipoles, polar liquids, changes in ion concentration, and cell activity.
o I got expertise in the development of full devices from their design/conception towards fabrication and full characterization. This included all steps in the semiconductor device fabrication and research: hands-on experience in both Molecular Beam Epitaxy (MBE) and Metal Organic Vapour Phase Epitaxy (MOVPE), clean room work, electron-beam lithography, Rapid Thermal Annealing (RTA), X-Ray Diffraction (XRD), high precision dicing system, alpha-step perfilometer, wafer bonding, semiconductor parameter analyser and probe station for device, photocurrent, curve tracer, curve analyser, sampling oscilloscopes, nanovolt generators, lock-in amplifiers, high resolution optical microscopy, Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), optical and optoelectronic experiments al methodologies, the use of HeCd and Ar+ lasers, including a Frequency doubling system.
 I was in charge of developing a experimental setup for Photoreflectance (PR) testing, new at the Institute, and improve the current Photoluminescence (PL) system.
 I gave advice and supported MSc and PhD students and also I had the opportunity to learn from their knowledge in areas previously unexplored to me, thanks to the broad scope in knowledge of the ISOM.
 My work also contributed to 3 congress presentations.


University of Strathclyde. Galsgow. Dept of Applied Physics [UK] PhD Student Apr 2000 – June 2004

PhD study on semiconductors (Thesis title: Investigations of the luminescence of GaN and InGaN/GaN quantum wells):
 Gallium nitride (GaN) is a semiconductor with wide bandgap. The bandgap is directly related to the wavelength (colour) of the light that a device made of a semiconductor can emit (emitter, such LEDs or laser diodes) or detect (photodetectors), being UV in the case of GaN, and if a compound semiconductor is fabricated, such as InGaN/GaN, this bandgap can be tuned with the amount of the InN fraction within the InGaN/GaN quantum well (thin layer of several nanometers). By controlling the amount of InN the bandgap of such semiconductor can be tuned, so the entire visible spectrum and UV could be covered. At that time, many aspects of these materials were unknown, and there was controversy about the fundamentals of the emitting processes of those materials. My work helped to clarify the emitting mechanisms of those materials, based in their optical properties.
o I studied new ways of improving microcavity devices, such as resonant cavity LEDs and vertical cavity surface emitting lasers (VCSELs). The quality of those microcavities was improved by improving lateral overgrowth techniques, such Lateral Epitaxial Overgowth (LEO), which can be used to bury the distributed Bragg reflectors (DBRs) forming the microcavities.
o The effects of inhomogeneities of InGaN structures were not totally known by then. I contributed to clarify it, by investigating these structures and concluding that InN-GaN segregation played a role in the longer wavelength light emission from high InN content structures, alongside the high piezoelectric fields present in those materials, by analysing phonon emission (from exciton localisation) observed in the measured spectra.
o The dependence of the the bandgap with temperature of InGaN was considered unusual and not fully studied yet. I proposed the first quantitative model that could fit the temperature dependence of the bandgap for structures having a bandgap ranging from blue to red in the visible spectrum.
o My work contributed to clarify the real bandgap of InN, that at the beginning of my studies was considered 1.9 eV, and finally a more realistic value of 0.7 eV was taken as correct by the community.
 I gained expertise in the field of optoelectronic devices science: the use of a number of systems, such as cryogenic systems, vacuum and high vacuum systems, electronics, optics, optoelectronic equipment (light sources, including lasers and fiber optics), Secondary Ion Mass Spectroscopy (SIMS), UV and visible photoluminescence, absorption and magnetoabsorption spectroscopies, as well as semiconductor modelling, simulation and programming.
 I started to develop my knowledge on colour science.
 Teaching Assistant activities in the laboratory for undergraduate students.
 I contributed to 2 congress presentations and 5 publications.


Universidad Autónoma de Madrid Dept of Applied Physics [Spain] Graduate Researcher Sept 1998 – Apr 2000

Materials for high power RF in Space applications:
 I worked on new materials that would help to prevent the multipactor effect. This phenomenon is an electron resonance that occurs when radio frequency (RF) fields accelerate electrons in vacuum leading the electrons to impact with a surface, releasing more electrons that also impact surfaces. This effect can be multiplied and could grow exponentially resulting in operational problems in the RF device, typically in aerospace equipment. To prevent this, some new materials have been proposed.
o My work consisted in developing an application that theoretically models the X-Ray Photoemission Spectroscopy (XPS) spectra from the materials proposed (metal silicides, especially Cr silicides), overcoming the difficulty of programming a “convolution of convolutions model”, and the long time required by then to run a simulation like that.
o Experimental work involved included thin film growth, surface treatments by low- energy beams, and characterization using XPS and Synchrotron Radiation - Ultraviolet Photoelectron Spectroscopy (UPS).
o I gained relevant experience in ultra high vacuum equipment, temperature control and related equipment.
o I started to develop my laboratory skills and network expanding abilities.
 I had the opportunity to work in the Synchrotron Bessy in Berlin.
 I started to develop my programming skills for scientific modelling.


Informática El Corte Inglés Sociedad Anónima (IECISA) Technology Department [Spain] IT Engineer Apr 1999 – Apr 2000

IT Engineer in the field of network monitoring:
 IECISA is a consultancy firm working on computer distribution and also consultancy and systems integration of electronic business systems and solutions, via its own products and integrating third party products and solutions.
o I intensively used Tivoli Management Framework from IBM, which allows administrators to manage large numbers of remote locations or devices. It is a Common Object Request Broker Architecture (CORBA) based system, which is a standard designed to facilitate the communication of systems that are deployed on diverse platforms, enabling collaboration between systems on different operating systems, programming languages, and computing hardware.
o I contributed by monitoring and preventing possible failures from clients’ computer networks and websites, and learned to deliver prompt solutions, remotely and from the customer’s site
o I also worked on UNIX (AIX) based scripts to help monitoring and maintenance of networks and nodes.
 I succeeded facing new challenges from the industry for the first time, and learned how to deal with customers’ issues, tight deadlines and urgent matters.

sports & fitness, oil painting, photography, trekking & mountaineering, literature, socialising.