Welcome to LSME!

   

Welcome to the Electron Spectrometry and Microscopy Laboratory. In this laboratory we address scientific problems through the development and utilization of advanced electron microscopy techniques and data processing and interpretation. Current research interests include:

  • Improved elemental quantification in analytical scanning transmission electron microscopy using combined EDXS and EELS
  • 3D reconstruction of curvilinear and other objects via “single shot” data acquisition in STEM and algorithmic reconstruction for fast/low dose applications in materials and life sciences
  • “Big data” in electron microscopy: strategies for open source exporting, management and processing of terrabyte+ data volumes created by new generation spectroscopy and 4D STEM detectors
  • Characterization of structure and structural evolution in energy technology materials
  • Measuring near field optical properties of nanophotonic and plasmonic structures using high energy resolution low loss EELS
  • Precision measurements of crystalline structure and electronic properties from the atomic to nano scales by aberration corrected microscopy and spectroscopy

For more information, go to our Research webpage

LSME news

Multi-signal acquisition and processing for chemical analysis of minor and trace elements

Congratulations Hui Chen on passing her PhD candidacy exam. In her project entitled “Multi-signal acquisition and processing for chemical analysis of minor and trace elements” Hui is researching optimized experimental strategies and improved data processing methods and algorithms for obtaining more precise chemical quantification via exploiting simultaneously acquired EELS and EDXS signals. We look forward to continuing to work with Hui on this over the next few years! 03.10.2018

New PhD student joins LSME for SCIM Sinergia project

LSME is pleased to welcome Gulnaz Ganeeva to the team! Ganeeva is beginning a PhD on further developing and optimizing the “Tilt-less 3-D electron imaging and reconstruction” technique that was invented by Dr Emad Oveisi and colleagues during his Oveisi’s PhD with Prof. Cécile Hébert. The project will exploit the potential of this technique for imaging curvilinear (i.e. work-like) structures in three dimensions for both materials and biological applications. It takes place within the framework of the recently-funded SCIM Sinergia project that officially launches on 1 September 2018, bringing together EPFL researchers from the Computer Vision Laboratory, the Laboratory of Sensory Processing, the Laboratory for Topology and Neuroscience, and the LSME in the Institute of Physics.

Diamond inclusions in a ureilite meteorite – LSME researchers in the news!

Nature Communications have published an article by LSME postdoctoral researcher Farhang Nabiei, on the study by TEM of large diamonds found in ureilite meteorites. The study is based on Farhang’s PhD work with Philippe Gillet‘s Earth and Planetary Science Laboratory and the CIME, and features co-authors from the LSME and the CIME. Owing to the study’s implications that the meteorite was from a protoplanet in our solar system which collided with another planet billions of years ago, the research has been featured in international press across the world, including the New York Times, the Washington Post and the Guardian. Co-author and LSME professor Cécile Hébert discusses the research in this radio interview on RTS.

LaVO3 thin film structural analysis

Newly LSME affiliated scientist Duncan Alexander and EPFL masters student Loïc Oberson have co-authored a new article in APL Materials on the Structural analysis of LaVO3 thin films under epitaxial strain. In the article, selected as an Editor’s Pick, Duncan and Loïc contributed atomic resolution STEM imaging and analysis of the thin films, as recorded using the FEI Titan Themis at CIME.

LSME at 2018 MRS Spring Meeting

LSME/PV-Lab PhD student Federica Landucci makes a platform presentation in this year’s MRS Spring Meeting in Phoenix Arizona, with the talk “An In Situ Multi-Technique Approach to Assess the Thermal Stability of Tin-Based Transparent Conductive Oxides” in the session on Materials Synthesis and Processing in Gas Environment and Solid State I, chaired by Peter Crozier and Quentin Ramasse.

LSME 2.0!

As of 1st January 2018, the Electron Spectrometry and Microscopy Laboratory begins a new era as group leader Prof. Cécile Hébert brings renewed focus to her research activities. At the same time, experienced microscopist Dr. Duncan Alexander joins the team from EPFL’s CIME, bringing high level microscopy skills and research interests including nanophotonics, growth kinetics, and precision structural measurements.