TIME-RESOLVED PUMP-PROBE PHOTOELECTRON-SPECTROSCOPY OF HELIUM USING AMODE-LOCKED LASER SYNCHRONIZED WITH SYNCHROTRON-RADIATION PULSES

Authors
LACOURSIERE J MEYER M NAHON L MORIN P LARZILLIERE M
Citation
J. Lacoursiere et al., TIME-RESOLVED PUMP-PROBE PHOTOELECTRON-SPECTROSCOPY OF HELIUM USING AMODE-LOCKED LASER SYNCHRONIZED WITH SYNCHROTRON-RADIATION PULSES, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 351(2-3), 1994, pp. 545-553
Citations number
22
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
351
Issue
2-3
Year of publication
1994
Pages
545 - 553
Database
ISI
SICI code
0168-9002(1994)351:2-3<545:TPPOHU>2.0.ZU;2-1
Abstract
We report a new experimental setup consisting in the synchronization o f 74.9094 MHz pulses from a mode-locked Ar+ laser with 8.32 MHz pulses of vacuum ultraviolet (VUV) synchrotron radiation from the Super-ACO storage ring of the Laboratoire pour l'Utilisation du Rayonnement Elec tromagnetique (LURE). The capabilities of the setup are demonstrated i n a time-resolved pump-probe (VUV + visible) experiment in which free helium atoms are resonantly ionized via the short-lived 1s3p (P-1) sta te. This experiment allowed us to obtain the value of 1.12 ns for the temporal resolution (FWHM) of the experimental setup and to show the r elevance of this technique for the investigation of nanosecond dynamic s on gas phase species.