Angle-resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two-dimensional imaging electron analyzer
Review of Scientific Instruments, ISSN: 0034-6748, Vol: 78, Issue: 8, Page: 083105
2007
- 87Citations
- 118Captures
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Metrics Details
- Citations87
- Citation Indexes87
- 87
- CrossRef77
- Captures118
- Readers118
- 118
Article Description
An experimental setup for time- and angle-resolved photoemission spectroscopy using a femtosecond 1 kHz high harmonic light source and a two-dimensional electron analyzer for parallel energy and momentum detection is presented. A selection of the 27th harmonic (41.85 eV) from the harmonic spectrum of the light source is achieved with a multilayer MoSi double mirror monochromator. The extinction efficiency of the monochromator in selecting this harmonic is shown to be better than 7:1, while the transmitted bandwidth of the selected harmonic is capable of supporting temporal pulse widths as short as 3 fs. The recorded E (k) photoelectron spectrum from a Cu(111) surface demonstrates an angular resolution of better than 0.6° (=0.03 Å-1 at Ekin,e =36 eV). Used in a pump-probe configuration, the described experimental setup represents a powerful experimental tool for studying the femtosecond dynamics of ultrafast surface processes in real time. © 2007 American Institute of Physics.
Bibliographic Details
AIP Publishing
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