Since more than 10 years TW- Ti:Sa laser development is a part
of the research activities in project 1-02. Within the High Field
Laser Infrastructure a multi 10- TW laser is in use for plasma experiments
in different projects. The current layout is depicted in the scheme
Currently a further moderate increase of pump energy has yielded
pulses with an energy above 4 J before temporal pulse compression.
With improvement of the spectral handling shorter pulses are anticipated
and with optimization of the beam line transmission we anticipate
a realization of 100 TW pulses in future. This together with a newly
installed 100 TW laser arm in 2010 (substitution for the Nd:Glass
laser) will bring up a unique facility for pump - probe experiments
at relativistic laser intensities.
View into the opened vacuum compressor chamber of the Ti:Sapphire
In the center is visible one of the 40cm high quality gratings (LLNL
The 10 Hz system delivers at the moment 40 - 50 fs, ~1.2 - 1.4
J pulses on target focusable to intensities of several times 1019W/cm2.
Foto of the 30 TW Ti:sapph laser (at the beginning of lab reconstruction
in 2009), successfully used in a Laserlab campaign 2008, TR18
experiments 2008 and 2009, internal projects 2-01, 2-02 and
3-04 in 2009 and restarted in December 2010.