Upcoming events

  • EBSN 2023

The Electron Beam Spectroscopy for Nanophotonics 2023 will take place from October 11th to 13th 2023 in Antwerp (Belgium).

The research area of nanophotonics, the study of light at the nanoscale, has experienced a dramatic growth in recent years. To further advance this field, it is essential to develop novel characterization techniques that are able to generate, probe and control light at length scales far below the diffraction limit of light, at a broad energy range, and at femtosecond time scales. Recently, electron-beam spectroscopies have emerged as powerful probes in nanophotonics research, fueled by the advent of improved microscopes and the exploration of brand-new techniques. In particular, taking advantage of the extremely high spatial resolution in electron beam microscopy, novel techniques have appeared that combine the use of electron beams with optical spectroscopy. Cathodoluminescence imaging spectroscopy (CL) and Electron Energy Loss Spectroscopy (EELS) use high-energy beams in an SEM or TEM. Photoemission Electron Microscopy (PEEM) and Scanning Tunneling Microscopy (STM) enable electron beam spectroscopies to be performed at lower energies and are also becoming increasingly popular to provide insight into optical phenomena at the nanoscale. Electron beam Phase-shaping techniques are now unveiling new properties of optical materials. Photon-induced near-field electron microscopy (PINEM) and newly emerging techniques that combine photons and e-beam interactions are revealing ultrafast phenomena with an unprecedented combination of spectral, spatial, and temporal resolutions.

Workshop chairs:

  • Prof. Jo Verbeeck (EMAT, University of Antwerp)
  • Prof. Nahid Talebi (University of Kiel)

Contact email: ebsn2023@uantwerpen.be

Important dates

  • Registration opens: June 15th, 2023
  • New Deadline for abstract submission: June 15st, 2023
  • Final program: July 15st, 2023
  • Deadline for registration: August 30th, 2023
  • EBSN Workshop: October 11-13, 2023

More information can be found on EBSN2023 Antwerp.

Previous workshops

  • eBEAM summer school 2022

The eBEAM School on Nano-Optics with Free Electrons will take place from September 11th to 16th 2022 on Porquerolles (France).

Electron optics and spectroscopy instrumentation developments in the last 20 years have considerably widened the range of applicability of electron beam techniques to nano-optics: meV beam energy spread, single atoms imaging capabilities, electron wavefunction shaping, fs pump probe experiments, and efficient light coupling to and from samples are a reality. This has enabled the study of a variety of excitations (plasmons, phonons, excitons…) at extreme spatial, temporal and spectral resolutions. Therefore, new theories have blossomed to explain exciting results coming from electron energy-loss spectroscopy (EELS), cathodoluminescence (CL) and photon induced near-filed electron microscopy (PINEM), and central concepts of nanooptics or quantum optics have been shown to be applicable to electron-based spectroscopies.

For this reason, it is high time for a school aiming at spreading knowledge about these new concepts and techniques and at fomenting the interest of a new generation of academics in this blooming field. That is the object of the eBEAM school focused on electron spectroscopies for nano-optics.

The school will include the following lectures:

  1. Electron microscopy instrumentation basis (Peter Kruit, Delft University of Technology, the Netherlands)
  2. Electron microscopy and spectroscopy basics (Gerald Kothleitner, Graz University of Technology, Austria)
  3. Electron spectroscopies of optical modes (Andrea Konečná, CEIT, Czech Republic)
  4. Electron spectroscopies of excitations in optical materials (Sean Collins, University of Leeds, UK)
  5. Time and quantum coherence in electron spectroscopy (Hugo Lourenço-Martins, CNRS, France)
  6. Space coherence in electron spectroscopy (Axel Lubk, IFW, Germany)
  7. Advanced EELS: vibrational EELS, q-resolved EELS (Demie Kepaptsoglou, Superstem, UK)
  8. Ultrafast PEEM (Walter Pfeiffer, Bielefeld University, Germany)

More information can be found on ebeam2022.org.

  • Electron Beam Spectroscopy for Nanophotonics (online 2021)
  • The EBSN 2021 workshop (www.nanoge.org/EBSN2021/home), 4th in the series, was funded by the H2020 eBEAM consortium and took place on June 14th & 15th.

    This workshop included the following topics:

    1. High-resolution electron energy loss and gain spectroscopy including vibrational spectroscopy
    2. Photon-induced near-field electron microscopy (PINEM), shaping electron wavepackets in space and time
    3. Interaction of slow electrons with light and nanostructures beyond adiabatic approximations
    4. Quantum optics and quantum coherence with electron beams
    5. Ultrafast analytical electron microscopy to probe spatiotemporal dynamics on the nanoscale
    6. Ultra-sensitive material analysis using event-based detection of single electrons and photons, correlation and coincidence detection
    7. Programmable electron phase plates to tailor electron wave fronts, holography
    8. Ultrafast coherent and incoherent cathodoluminescence
    9. Novel instrument development for electron beams enhancing analytical microscopy
    10. Applications of electron beam spectroscopy in materials science for renewable energy, metrology, low-damage imaging sensitivity in life sciences, novel quantum sensing schemes
    • Electron Beam Spectroscopy for Nanophotonics (Paris 2019)
    • Electron Beam Spectroscopy for Nanophotonics (Sitges, 2017)
    • Electron Beam Spectroscopy for Nanophotonics (Amsterdam, 2014)