Periodic Reporting for period 4 - SCEON (Scanning Electron Optical Nanoscopy)
Período documentado: 2021-01-01 hasta 2021-06-30
1) Angle- and polarization-resolved CL on nanophotonic structures and revealed how the interact with light;
2) An ultrafast pulsed CL microscope equipped with an ultrafast electrostatic beam blanker and demonstrated ultrafast CL imaging microscopy;
3) An ultrafast pump-probe CL microscope equipped with a femtosecond laser-driven cathode and demonstrated ultrafast CL pump-probe spectroscopy.
Using the instruments we have obtained detailed insight in light-electron-matter interaction at the nanoscale. A selection of key novel insights are:
1) Fundamental understanding of photon bunching in cathodoluminescence spectroscopy and application to study carrier dynamics in semiconductors
2) Demonstration of cathodoluminescence holography
3) Subwavelength imaging of optical dispersion of photonic topological insulators
4) Generation of twisted states of light
In parallel we built network of collaborators in electron microscopy in Europe by organising workshops (EBSN, 2017, 2021) and acquiring a new EU Grant with 8 EU partners (eBEAM consortium)
Furthermore, we trained several young scientists who have moved on to top-level jobs in academia, technology Institute, and industry
This work has been reported in 24 scientific publications so far, and 25 invited/keynote presentations at international conferences and workshops.