DS3-DS4 Joint 1 st Task Meeting, Saclay 16 th -17 th May 2005 Matter under extremes conditions Femtosecond Laser Servers Laboratoire Francis Perrin SPAM Atoms, Photons and Molecules Laboratory Applications of Plasmas High Energy Density Matter Attophysics High Intensity Physics Dynamics of Chemical Reactivity Excited Biomolecules Nanometrics Buildings Theoretical Chemistry Laser Sources Teams Technical Support (Mechanics, Vacuum, CAD) SLIC

DS3-DS4 Joint 1 st Task Meeting, Saclay 16 th -17 th May years experience - 4 servers – 10 beamlines LUCA, tunability from 10 to 800 nm SOFOCKLE : High repetition rate (KHz) UHI10: haute puissance de 10 TW : High repetition rate Tunability More than 90% Reliabilit y for scientists CEA, France, Europe 60%, 20%, 20% Open Sources Complementarity PLFA SLIC Saclay Laser Interaction Center

DS3-DS4 Joint 1 st Task Meeting, Saclay 16 th -17 th May rd order Cross Correlator Optical scheme (colinear version) Input beam Neutral densities Half wave plate Polarisers SHG TypeI BBO crystal SFM TypeI BBO crystal Prisms Interference filter“Solar blind” PMT Sequoia is the first commercial high dynamic range third- order femtosecond cross-correlator, an ideal tool for high precision measurements of the temporal pulse shape of femtosecond lasers. R&D in laser femtosecond temporal diagnostics

DS3-DS4 Joint 1 st Task Meeting, Saclay 16 th -17 th May 2005 Year Total research effort [PM] PM EU- request Personnel Durable Equipment ConsumablesTravel Total eligible costs (a+b) FC, FCF requested CEA ,000, , , ,00 CEA ,000, , , ,00 CEA3600, , , ,00 Total € ,000, , , ,00 CEA/DS3 Financial and Work Plan Synchronisation and Feedback: RF to Laser and Electron Beam Participants: ELETTRA, CEA, CNRS (LOA, LULI, ELYSE), ENEA, INFN, MAX-Lab Study the synchronisation issues between the master laser system, supplying the laser for the photo-injector, and another beam from the master laser system which could be used for seeding the first stage of a harmonic generation cascade, or for pump-probe user experiments at the different stages of the accelerator. KHz tests on PLFA, studies on mechanical stability, amplifiers’ gain

DS3-DS4 Joint 1 st Task Meeting, Saclay 16 th -17 th May 2005 Master Oscillator dazzler POCKELS /2 VERDI (532 nm, 4 W) ph1 ph2 15 fs, 70 nm POCKELS Ti Sa Preamplifier (Gain x3) Regenerative Amplifier (Gain x10 5 ) 6W 9W 2W 660mW POCKELS JADE (527 nm, 20 W) JADE USERS 4.7W 30 fs Multipass Amplifier Compressor Stretcher PLFA (Tunable Femtosecond Laser Platform) (Gain x10) Ti:Sa 1 KHz, 20 mJ, 30 fs pulses

DS3-DS4 Joint 1 st Task Meeting, Saclay 16 th -17 th May 2005 CEA/DS3 Synchronization, Jitter and Drift How really large is the jitter in KHz laser systems ? Averaged on different timescales Pump Laser Stability Mechanical stability (two amplified beams) Air Flow dynamics Non Linear effects in short pulse propagation What about the drift ? Shot to Shot Pointing Oscillator and Pump Laser Stability Thermal Stability Main Goal : Systematic Analysis

DS3-DS4 Joint 1 st Task Meeting, Saclay 16 th -17 th May 2005 CEA/DS3 Experimental Strategy Spectral Interferometry Single Shot Cross Correlator Spatial Interferometry Portability High Rate Acquisition with minor cost Two amplified arms High Accuracy (get sub-fringe information~2 fs) No sensitivity to pointing fluctuations Different spectra (no contrast reduction) Analysis of different chirps (different fringe contrast)   ’