Ferrous/ferric iron determination by electron microprobe: the flank method and its applications in Earth Sciences Goethe-Universitaet Frankfurt am Main 1982: Diploma in Mineralogy/Crystallography at Technical University (RWTH) Aachen; Master Thesis at company Dornier System GmbH, Friedrichshafen: Crystal chemistry and electrical conductivity in oxidic La-Cr-Ni-Perovskites. Award: Springorum-Denkmünze presented by RWTH 1989: PhD at the Mineralogic-Petrographic Institute of the University of Cologne: The deformation of Sodium Nitrate single crystals 1990 – 1995: research fellow at Max-Panck-Institute in Mainz (group of Gerhard Brey) 1995 – present: part of the academic staff at the Institute of Geosciences, Goethe-University; in the group of Gerhard Brey until 2014 and of Horst Marschall since 2016 (Mineralogy, petrology and geochemistry). Supervisor of the electron microprobe and SEM labs. 2013:Award: Abraham-Gottlob-Werner-Medaille in Gold presented by the German Mineralogical
Current research · Development of an in situ method with the electron microprobe for the determination of the iron oxidation in solid materials on the microscale (“flank method”) · Determination of Fe2+/Fe3+ with the flank method in synthetic minerals (garnet, pyroxene) and extending the application to natural minerals for oxygen fugacity calculation · Quantitative analysis of light elements (B, N, O) with the electron microprobe · Contract research for the development and quality control of industrial materials with partners from industry · Cooperation with partners from other universities
François Vurpillot (44 yrs) is professor at the University of Rouen (Normandie Université), and researcher in the « Groupe de Physique des Matériaux », CNRS laboratory. He is head of the scientific instrumentation team of the group. François Vurpillot did his PhD in Rouen and post-doctoral research in Oxford (Marie Curie Fellowship in the department of Materials, Oxford University) on image formation with the APT instrument. François Vurpillot is a specialist in field emission, laser induced field emission, Field Ion Microscopy, Tomographic reconstruction and contributed to the development of several generations of Atom Probe Instruments. He contributed to more than 100 publications in the field.
Selected publications : · Atom Probe Tomography1st Edition / Put Theory Into Practice, Editors: Williams Lefebvre Francois Vurpillot Xavier Sauvage, Hardcover ISBN: 9780128046470, Academic Press, Elsevier publication (2016) · F. Vurpillot and C. Oberdorfer, Ultramicroscopy, Modeling Atom Probe Tomography: A review; doi:10.1016/j.ultramic.2014.12.013 · F Vurpillot, W Lefebvre, JM Cairney, C Oberdorfer, BP Geiser, K Rajan, Advanced volume reconstruction and data mining methods in atom probe tomography, MRS Bulletin 41 (01), 46-52 (2016) · Vurpillot F., Gault B., Geiser B. P., and Larson D.J., Reconstructing atom probe data: A review, Ultramicroscopy, Volume 132, September 2013, Pages 19–30 · Larson D.J, Gault B., Geiser B, P,, de Geuser F., Vurpillot F., Atom Probe Tomography Spatial Reconstruction: Status and Directions, Current Opinion in Solid State and Materials Science, Volume 17, Issue 5,, Pages 236-247 (2013)
Paul Matsudaira received his PhD in Biological Sciences from Dartmouth College in 1981 then carried out postdoctoral research at the Max Planck for Biophysical Sciences (Goettingen, Germany) and the MRC Laboratory for Molecular Biology (Cambridge, UK). In 1985, he joined the Whitehead Institute, Department of Biology, and later, the Department of Biological Engineering, MIT where his lab worked on the structure and mechanics of the cytoskeleton in cell motility as well as the development and application of micro-analytical methods. In 2009, he moved to the National University of Singapore as Head, Department of Biological Sciences, Director, NUS Centre for BioImaging Sciences, and co-Director, MechanoBiology Institute. His lab studies the mechanobiology of early zebrafish development.
Focused ion beam scanning electron microscopy of multiscale and mixed phase matrices Keana Scott is a Physical Scientist in the Materials Measurement Science Division at the National Institute of Standards and Technology (NIST). Keana earned her B.S. in Engineering and Applied Sciences from the California Institute of Technology, Ph.D. in Mechanical Engineering from the University of Pittsburgh and M.S. in Biotechnology from the Johns Hopkins University. Prior to joining NIST in 2006, Keana spent several years developing automation engineering solutions for Celera Genomics and led a group of scientists involved in computational chemistry and proteomics. Keana’s current research efforts are on multi-modal imaging technique development and microanalysis of complex materials using electron and ion beams.
Prof. Jani Kotakoski
Atomic-scale chemical and physical manipulation of materials in the electron microscope Prof. Jani Kotakoski completed his PhD in Helsinki in 2007, worked as postdoc in Germany (2007-2009), in Finland (2009-2011) and Austria (2011-2015). Since 2015 he has been a professor at the University of Vienna (tenured as associate professor in 2017).
Jani is the head of the Physics of Nanostructured Materials research division at the Faculty of Physics in University of Vienna, and his research concentrates on the growth and manipulation of novel materials using a unique closed ultra high vacuum setup built around an aberration corrected transmission electron microscope.
Chris is a physicist focussed on developing next generation microanalysis capabilities using proton and X-ray microbeams primarily for geoscience applications through the Mineral Resources division of CSIRO. He designed and built the CSIRO Nuclear Microprobe beamline and quadrupole quintuplet lens system, developed techniques and software for trace element real-time imaging, such as widely used in the GeoPIXE fluorescence imaging software, and initiated international collaborative efforts driving the CSIRO-BNL Maia advanced spectroscopy and imaging detector developments, their application at synchrotron and ion-beam laboratories and the Maia Mapper high definition laboratory XRF mapping system.
X-ray ghost imaging, ghost tomography and ghost microscopy
David received his PhD in optics from Melbourne University in 1999, and has been with Monash University since 2002. He is a theoretical physicist with a range of research interests in x-ray optics, visible-light optics, electron diffraction, neutron optics and non-linear quantum fields. He has published in coherent optics, phase retrieval, ghost imaging, Bose-Einstein condensation, tomography, medical imaging, electron microscopy, topological defects, microscopy and quantum turbulence. He always strives for original (and preferably simple) solutions to highly interesting problems of either fundamental or practical significance (preferably both!). He enjoys working closely with others, especially experimentalists, with a view to seeing the theory "made real" via tangible applications to the physical world.
Sophie Meuret is a researcher in the CEMES Laboratory (CNRS) in Toulouse since December 2018, where she is studying the complementarity of electron holography and cathodoluminescence in a TEM. Before she was a Post-Doc in the Photonic Materials group at AMOLF, Amsterdam. She obtained her PhD from the University Paris Saclay. Her work mostly focuses on the understanding of electron-matter interaction using cathodoluminescence (CL) spectroscopy. One of her main axe of research is the use of Hanbury Brown and Twiss interferometer, to studied the CL autocorrelation function g(2) from semiconductors. The g(2) shows strong bunching due to the fact that a single electron creates multiple excitations. She showed that this effect can be used to extract the excitation efficiency without a priori knowledge of the structure as well as the lifetime.
During her post-doc she was developing ultra-fast time-resolved cathodoluminescence spectroscopy to study spatially-resolved ultrafast carrier recombination and single emitters in nanostructures. In parallel, she developed, together with Magda Solà Garcia (PhD), a time-resolved microscope based on a pulsed-laser driven electron gun with cathodoluminescence. This geometry allows pump-probe CL spectroscopy on a wide range of nanophotonic structures.
Development of gas-phase operando TEM and applications in catalysis research
Patricia obtained her MSc from Leiden University (The Netherlands), studying the selective reduction of nitrosobenzene over mixed manganese oxides. She obtained her PhD from Delft University of Technology (The Netherlands) studying TS-1 zeolite synthesis and catalytic applications. Following a post-doc at Shell research centre (Amsterdam, The Netherlands), she learned all about TEM during a long post-doc period at the NCHREM (Delft, The Netherlands). Subsequently she was appointed assistant professor at the Chemical Engineering department (catalysis engineering group) at Delft University of Technology (The Netherlands). She came to South Africa in 2015 as SARChI Chair Nanomaterials for Catalysis.
She has always enjoyed travelling and has held many short-term visiting scientist positions throughout her career.
Her research focusses on heterogeneous catalysis, especially catalyst characterisation. She is an expert in high resolution transmission electron microscopy and is one of the pioneers in gas-phase in situ TEM.
High spatial and energy resolution STEM EELS studies of complex oxides Demie Kepaptsoglou is a Staff Scientist of the SuperSTEM Laboratory in Daresbury UK and holds a joint Lecturers position at the University of York in the U.K.. She received her PhD on Metallurgy and Materials Science from the National Technical University of Athens, Greece and subsequently worked as a Postdoctoral Associate at the university of Oslo in Norway, before joining SuperSTEM in 2011 and the University of York in 2017. Her work focuses on the implementation of analytical electron microscopy and spectroscopy in functional materials focusing on the effects defects presence in the electronic structure and transport properties.
High Resolution Biological Imaging Across Scales for Fundamental Research
Srigokul (Gokul) Upadhyayula’s research interests bridge applied engineering with basic science. He studied the charge transfer properties of cyanine dyes and bioinspired electrets using ultra-fast femtosecond spectroscopy as a doctoral student with Prof. Valentine Vullev at University of California, Riverside. Gokul joined Tom Kirchhausen’s group at Harvard Medical School / Boston Children’s Hospital as a postdoctoral fellow, where he focused on questions addressed at a molecular level using lattice light-sheet microscopy (LLSM) with high temporal and spatial resolution. In parallel, Gokul joined Eric Betzig’s group at Janelia Research Campus as a visiting scientist, where he collaborated on the adaptive optical LLSM project to investigate sub-cellular dynamics within the natural environment of multicellular organisms such as zebrafish embryos, and on the expansion microscopy + LLSM project to image the entire fly brain and mouse cortical column with synaptic resolution. Gokul joined UC Berkeley’s faculty July 2019 to lead the Advanced Bioimaging Center (ABC) as its scientific director.
Gokul, along with ABC co-founders Nobel Laureate Eric Betzig, Xavier Darzacq, Doug Koshland, and Robert Tjian, aims to bring scientists with broad specialties (instrumentation, biology, applied mathematics, and computer science) together and provide free access to advanced imaging systems and resources. To start, Gokul and his team will build two cutting-edge adaptive optical multi-functional microscopes to enable imaging across scales spanning several orders of magnitude in space and time, with, for example, specimens up to several millimeters in size, or over imaging sessions lasting up to multiple days. Consequently, the greatest challenge the users face is the ability to visualize, analyze and understand the explosively large quantities of immensely complex data. The primary goal of the ABC is therefore to provide both cutting-edge microscopy, and dedicated human and hardware resources capable of handling tera- to petabyte scale projects and developing robust, open source computational workflows that allow scientists to extract biologically meaningful insights.
Characterising phase transformation and deformation mechanisms in a 17 wt.% Mn steel
Dr Gazder is a Senior Research Fellow at the UOW Electron Microscopy Centre which he conceptualised, co-designed and commissioned. His key strengths as a physical metallurgist are in the areas of electron microscopy, crystallography, modelling, code development and engineering. His research interests focus on thermo-mechanically processed steels, Cu, Al, Ti, Mg and shape memory alloys. The studies involve the determination of crystal phase–microstructure–property relationships via a combination of polycrystalline self-consistent modelling, experimental validation (utilising S/TEM, TKD, EBSD on electron transparent cross-sections, ND, synchrotron diffraction & XRD) and code development (for detailed statistical analysis of EBSD/EDS maps for boundary and phase transformation work).
Peta completed her PhD on microscopy and X-ray microanalysis of calcification processes in reef corals in the Alan Marshall stable at La Trobe University, in 2002. From this she developed interests in structure-function relationships (particularly in symbiotic / parasitic systems) and in ion and nutrient transport strategies. Since 2003 Peta has been an academic in the Centre for Microscopy, Characterisation and Analysis at The University of Western Australia. She was Deputy Director 2014-15 and is currently the Director of Teaching. She is responsible for leading applications and research in the imaging and characterisation of biological systems. Her recent interdisciplinary research extends from C and N dynamics in plant, soil, and marine systems, to understanding the cellular basis of Ca and P toxicity and salinity tolerance in plants, to investigating Australian wildlife pathogens. With this her microscopy expertise extends across optical, ion, electron, and X-ray based systems and ancillary analytical and sample preparation methods.
Dr. Dan Fletcher is the Chatterjee Professor of Bioengineering & Biophysics at UC Berkeley. He and his laboratory study membrane and cytoskeletal organization and develop optical and force microscopy technologies, with applications to immunology, virology, and cancer biology. They also build mobile phone-based microscopes that are being used to detect infectious diseases in developing countries. Dr. Fletcher received a B.S. from Princeton University, a D.Phil. from Oxford University where he was a Rhodes Scholar, and a Ph.D. from Stanford University as an NSF Graduate Research Fellow. His bioengineering and biophysics research has been recognized with an NSF CAREER Award, a Tech Award from the San Jose Tech Museum, and a “Best of What’s New” citation by Popular Science magazine. He is a Chan-Zuckerberg Biohub Investigator, an elected Fellow of the American Institute for Medical and Biological Engineering, and also served as a White House Fellow in the Office of Science and Technology Policy at the beginning of the Obama administration.