34 citations · 88 across the 9 of their papers we have counts for
9 papers
Spatial and energetic correlations of ultrashort two electron pulses
Stefan Meier, Jonas Heimerl, Felix López Hoffmann +3
When two electrons are emitted from a metallic needle tip into a nanometric volume on femtosecond timescales, strong Coulomb correlations arise. While longitudinal correlations, ma…
Attosecond physics in optical near fields
Jonas Heimerl, Stefan Meier, Anne Herzig +8
Attosecond science, the electron control by the field of ultrashort laser pulses, is maturing into lightfield-driven electronics, called petahertz electronics. Based on optical fie…
Driving electrons at needle tips strongly with quantum light
Jonas Heimerl, Andrei Rasputnyi, Jonathan Pölloth +3
Attosecond science relies on driving electrons after photoemission with the strong optical field of a laser pulse, representing an intense classical coherent state of light. Bright…
Multi-photon electron emission with non-classical light
Jonas Heimerl, Alexander Mikhaylov, Stefan Meier +4
Photon number distributions from classical and non-classical light sources have been studied extensively, yet their impact on photoemission processes is largely unexplored. In this…
Deep Learning-Based Spatiotemporal Multi-Event Reconstruction for Delay Line Detectors
Marco Knipfer, Stefan Meier, Jonas Heimerl +2
Accurate observation of two or more particles within a very narrow time window has always been a challenge in modern physics. It creates the possibility of correlation experiments,…
Few-electron correlations after ultrafast photoemission from nanometric needle tips
Stefan Meier, Jonas Heimerl, Peter Hommelhoff
Free electrons are essential in such diverse applications as electron microscopes, accelerators, and photo-emission spectroscopy. Often, space charge effects of many electrons are…
Coulomb interactions and the spatial coherence of femtosecond nanometric electron pulses
Stefan Meier, Peter Hommelhoff
The transverse coherence of electrons is of utmost importance in high resolution electron microscopes, point-projection microscopes, low-energy electron microscopy and various othe…
Femtosecond laser-induced electron emission from nanodiamond-coated tungsten needle tips
Alexander Tafel, Stefan Meier, Juergen Ristein +1
We present femtosecond laser-induced electron emission from nanodiamond-coated tungsten tips. Based on the shortness of the femtosecond laser pulses, electrons can be photo-excited…
High spatial coherence in multiphoton-photoemitted electron beams
Stefan Meier, Takuya Higuchi, Manuel Nutz +2
Nanometer-sharp metallic tips are known to be excellent electron emitters. They are used in highest-resolution electron microscopes in cold field emission mode to generate the most…