FEMTOSPEX Molecules and Surfaces

FEMTOSPEX Molecules and Surfaces

An electron spectroscopy setup for time resolved Laser-Pump/x-ray-Probe -experiments is currently being built and in the test phase regarding reproducability, detection solid-angle, efficiency, time resolution, energy resolution, spectrometer factor, and so on.

First results from measurements using the VG Scienta ArTOF and slicing conditions are available,

BESSEL-box spectrometer

BESSEL-box spectrometer

Test electron-spectrum for 800 eV primary electrons on HOPG, taken with a simple Faraday-cup detector

Test electron-spectrum for 800 eV primary electrons on HOPG, taken with a simple Faraday-cup detector

Sliced and unsliced raw data of Au 4f lines. a) Slicing off b) slicing on c) Difference of a) and b)

Sliced and unsliced raw data of Au 4f lines. a) Slicing off b) slicing on c) Difference of a) and b)

List of publications
Station data
Monochromator soft X-ray
Experiment in vacuum yes
Temperature range 90K - 300K
Detector ARTOF EW 60° lens and currently in a different chamber a Bessel Box
Manipulators VG Scienta flag style (Borrowed)

Methods

XMLD, Time-resolved studies, EXAFS, NEXAFS, XMCD, Angular-resolved PES, XPS, UPS