2 COLOR EXPERIMENTS COMBINING FREE-ELECTRON LASER AND SYNCHROTRON-RADIATION

Citation
M. Marsi et al., 2 COLOR EXPERIMENTS COMBINING FREE-ELECTRON LASER AND SYNCHROTRON-RADIATION, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 393(1-3), 1997, pp. 548-551
Citations number
17
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
393
Issue
1-3
Year of publication
1997
Pages
548 - 551
Database
ISI
SICI code
0168-9002(1997)393:1-3<548:2CECFL>2.0.ZU;2-D
Abstract
We present the results of the first two color experiment coupling FEL and Synchrotron Radiation, where the SuperACO FEL was used to photoexc ite carriers at semiconductor surfaces and the consequently induced su rface photovoltage was studied with soft X-ray photoemission spectrosc opy. Thanks to the subnanosecond temporal resolution and high surface sensitivity of our experimental setup, we were able to measure for the first time the effect of surface states on band bending dynamics. Bas ed on our direct experience during these experiments, and on the futur e developments related to other two color experiments proposed on Supe rACO, we will discuss the advantages and the technical aspects of this mode of operating the storage ring and the FEL.