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The Group

Dr Ioannis Papakonstantinou - Senior Lecturer

Ioannis received his Diploma in Electrical and Computer Engineering from National Technical University of Athens and his PhD in Optical Interconnects from University College London in 2008. In 2008-2009, he worked for Sharp Laboratories of Europe, investigating sub-wavelength diffractive films fabricated by nanoimprint lithography to improve the brightness, uniformity and power consumption of liquid crystal displays. He joined CERN-European Organisation for Nuclear Research in 2009, where he worked on optical fibre links for the distribution of timing-trigger and control signals in the Large Hadron Collider. He was appointed as a Lecturer in the Electronic and Electrical Engineering Department at UCL in 2011, where he founded the Photonic Innovations Lab. He was promoted to Senior Lecturer in 2015. 
Ioannis is a member of EPSRC's Early Career Forum in Advanced Manufacturing, he serves on UCL's Board of Energy Directors and he is a member of the steering committee of the Crystal Clear Collaboration and of the EU-COST Action Fast Advanced Scintillator Timing. In 2015 he was awarded an ERC starting grant to develop "smart", thermochromic windows technologies. Ioannis is very keen in translating research from the work bench to the market and has already overseen the work in his PhD being successfully commercialised.


Dr Tao Li - Postdoctorate Researcher 

Dr. Li’s research field is in nanotechnology, with interdisciplinary efforts extended to material science and nanofabrication technique. He joined the group since June. 2016 for moth-eye smart windows project after earning his Ph.D. from the Technical University of Denmark (DTU). He received his M.S. degree in Chemical Engineering (2010) from University of California at Riverside, USA and received his B.Sc. degree in Pharmaceutical Science (2008) from the Tianjin University, China. Previously he has successfully addressed several topics, including: block copolymer lithography, porous materials and membrane separation process. Current research interests include developing large-scale and cost-effective nano-fabrication methods for smart coatings.


Dr Sasha Noimark - Postdoctorate Researcher


Dr Johannes Schlaefer - Postdoctorate Researcher

Johannes received his PhD (summa cum laude, 2014) in Inorganic Chemistry from University of Cologne (Germany) under the supervision of Prof. Sanjay Mathur. During his PhD he focused on the synthesis of rare earth metal singles-source precursors for chemical vapour deposition of functional metal oxides. Before joining the group in May 2016 Johannes worked as a postdoctoral researcher at the Catalan Institute of Nanoscience and Nanotechnology (Barcelona, Catalonia) in the group of Prof. Jordi Arbiol characterizing nanomaterials by advanced transmission electron microscopy techniques. Currently his work is focused on the synthesis of metal-organic precursors, the deposition of thermochromic films for smart window applications and the modification of surface functionalities.


Richard Colchester - PhD Student

Richard has an MSci in Physics from Imperial College London, from which he graduated in 2012. Following this he joined the Photonics Systems Development Centre for Doctoral Training (UCL-Cambridge) where he worked on plasmonic enhancement for luminescent solar concentrators (UCL) and fluorescence lifetime imaging microscopy (Cambridge) during his Masters. He continued to the PhD under the supervision of Dr Adrien Desjardins (Department of Medical Physics and Biomedical Engineering) and Dr Ioannis Papakonstantinou.  Over the course of his research he has developed a novel set of all-optical ultrasound imaging devices for use in minimally invasive surgery, which he continues to develop for clinical translation.


Radikha Poduval - PhD Student

Radhika joined the group in October 2015 after completing a joint degree Masters in Biomedical engineering with distinction. During the first year of her masters (Trinity College Dublin) she worked on investigation of corticomuscular coherence changes due to Cancer-related fatigue (using EEG and EMG for simultaneous analysis of electrophysiological signals from the brain and skeletal muscles). She was at Ghent University and VUB for the second year, where she worked on her thesis project designing flexible electronic circuits for smart contact lens applications (imec Leuven, and CMST, Ghent, Belgium).

She is currently working on developing optical fiber probes for ultrasound imaging and other applications relevant to minimally invasive surgery.


Mark Portnoi - PhD Student

Mark completed his undergraduate degrees here at Electronic and Electrical Engineering, UCL, from which he graduated with first class honours in 2015. During the last year of this programme he joined the group for both a summer project and a final year project, developing a Monte Carlo methods ray tracing programme in C++, for use in the modelling of Luminescent Solar Concentrators. In September 2015 he re-joined the group as a PhD student, on an EPSRC funded studentship, working towards improving the efficiency of Luminescent Solar Concentrators, including modelling of, fabrication and characterisation of the devices. 



Tom Robbins - PhD Student

Tom has an MSci in Physics from the University of Bristol and an MRes in Photonics from UCL, and is part of the UCL-Cambridge Centre for Doctoral Training in Integrated Photonics and Electronics. Happiest when working at the boundaries between different sciences, he has worked in groups involved in quantum computing, quantum chemistry, custom computing and even molecular biology. For his PhD, he's looking at developing a new generation of microscopic medical imaging devices for use in minimally-invasive surgery made using fibre optics, nanoparticle composites and 3D printing.




Christian Sol - PhD Student

Christian completed his undergraduate degree in physics at the University of Leeds in 2014.  He then went on to join the UCL-Cambridge Centre for Doctoral Training in Integrated Photonic and Electronic Systems, where he undertook MRes projects in both the Cavendish Terahertz Quantum Cascade Laser research group in Cambridge, and the Photonic Innovations Lab at UCL.  He is currently working towards a PhD in the development of thermochromic smart windows based on the switching properties of vanadium dioxide. Specifically, Christian is involved in the simulation and characterisation of vanadium dioxide based smart windows along with the scalable fabrication of nanostructures with anti-reflective and hydrophobic properties.