Laser-based apparatus for extended ultraviolet femtosecond time-resolved photoemission spectroscopy

Authors
Siffalovic, P Drescher, M Spieweck, M Wiesenthal, T Lim, YC Weidner, R Elizarov, A Heinzmann, U
Citation
P. Siffalovic et al., Laser-based apparatus for extended ultraviolet femtosecond time-resolved photoemission spectroscopy, REV SCI INS, 72(1), 2001, pp. 30-35
Citations number
34
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
REVIEW OF SCIENTIFIC INSTRUMENTS
ISSN journal
00346748 → ACNP
Volume
72
Issue
1
Year of publication
2001
Part
1
Pages
30 - 35
Database
ISI
SICI code
0034-6748(200101)72:1<30:LAFEUF>2.0.ZU;2-1
Abstract
A novel laser-based apparatus is presented utilizing high harmonic radiatio n for visible pump-EUV probe experiments on ultrafast processes. True femto second temporal resolution is achieved by a monochromator making use of ded icated narrowband multilayer mirrors rather than gratings for selection of single harmonic orders in the photon energy range between 66 and 73 eV. Fir st applications of this new light source for electron spectroscopy on gas p hase helium and xenon demonstrate the selection of a single high harmonic o rder with the intensity ratio between the selected and its adjacent harmoni c not exceeding 10:1. A pump-probe study of hot electron production on a so lid Pt(110) surface yields a cross-correlation corresponding to a temporal system resolution of 100 fs. (C) 2001 American Institute of Physics.