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3 papers
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…
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…