Momentum Microscope
(NanoESCA with k-space optics):
Ag(100) and unfocused VUV source


The following example represents one of the first k-space image sequences taken in 2010 on Ag(100) in two different energy bands with the Momentum Microscope (NanoESCA) and the (non-focused) VUV source FOCUS HIS13 in the lab. Please compare with recent sequences we took on Ag(111) with our newly developed small spot VUV source FOCUS HIS13/SS.

The energies shown are related to the fermi level.


Watch & enjoy:

Ag d-band

Ag(100),
14.0eV - 18.0eV (HeI excitation, HIS 13), FOV 50µm,
81x50meV steps,
30s acq. time/image --> 41 minutes

(Olivier Renault & Nils Weber, Jan 2010, LETI, Grenoble)






Ag sp-band

Ag(100),
17.8eV - 22.0eV (HeI excitation, HIS 13), FOV 50µm,
85x50meV steps,
50s acq. time/image --> 71 minutes

(Olivier Renault & Nils Weber, Jan 2010, LETI, Grenoble)




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