10th - 12th September 2007
ESRF, Grenoble, France
Venue: ESRF Auditorium in the central building

Organising Committee: from the ESRF Experiments Division N Brookes, J Goulon, E Jahn-Feppon, A Rogalev, F Sette and F Wilhelm and
P Elleaume, L Farvaque, J Jacob from the ESRF Accelerator and Source Division



As part of its current effort to refine a long-term scientific strategy, the European Synchrotron Radiation Facility (ESRF, Grenoble/ France) is organizing on September 10 -12, 2007 a workshop on: TeraHertz Dynamics probed with X-rays. This workshop aims to discuss new opportunities at third generation Synchrotron Light sources to study dynamical phenomena in the frequency-domain up to the TeraHertz region using X-rays. This approach complements worldwide efforts on the developments of X-ray Free-Electron Lasers (XFEL) sources with their exciting new perspectives to study ultra-fast dynamical phenomena in the Time-Domain at a time scale as short as a few femtoseconds. In fact, it is envisaged at the ESRF to elaborate a research program to study ultra-fast dynamical phenomena in the Frequency domain using Pump & Probe experiments in which high power THz radiation would be used as a pump and X-ray Spectroscopies as the probe. State-of-the-art technologies to design high power Gyrotron amplifiers as well as compact THz FELs will be reviewed by internationally recognized experts. The aim of the meeting will also be to bring together scientists from the Far-IR / THz physics community and X-ray Physicists to discuss future propects including X-ray Detected Magnetic Resonance (XDMR) in the Far IR, a challenging extension of THz electrooptics into the X-ray regime, the X-ray spectroscopy of electro-magnons and a variety of scattering processes simultaneously involving phonons and other quasiparticles.

The final programme of the workshop is detailed in the ESRF WEB pages. The programme is split into 10 short sessions regrouping 2 or 3 invited talks each. On Monday, September 10,  the 4 sessions will focus on the exploitation of the Time/Frequency structures of 3rd and 4th generation Synchrotron Radiation X-ray sources, new developments of THz free-electron lasers and high power Gyrotron in the THz /sub THz frequency ranges.  The four sessions scheduled on Tuesday, September 11 are all concerned with spectroscopies combining X-ray, microwave, mm-waves and Far-IR radiations: the topics to be covered include novel aspects of magnetic resonance, ultrafast opto-magnetism and magnetization reversal, magnetoelectric excitations and ultrafast electro-optical effects. The last two sessions scheduled on Wednesday, September 12  will be concerned with phonon dynamics studies exploiting high energy X-ray scattering methods and ultrafast dynamical properties probed with soft X-rays.