The research is conducted in CELIA, located in Bordeaux





The lab:

The Center for Intense Lasers and Applications (CELIA) is a research lab devoted to ultrashort laser developments and applications. The HarMoDyn project is mainly conducted on the 1kHz Ti:Sa Aurore laser system which delivers 7-mJ 25-fs pulses at 800 nm. Other laser systems are also available if needed: 10 Hz, 110mJ, 45 fs Ti:Sa Eclipse system and a novel MHz fiber based system which was recently used to generate high harmonics.

CELIA is a user facility open: external users can access it through the Laserlab Transnational Access



Aurore laser system



Pump and probe pulses:

In order to tune the wavelength of the pump and probe pulses, we use noncolinear optical amplifiers:

- a HE-TOPAS which delivers 700 microjoules pulses between 1.6 and 2.2 microns.

- a home-built NOPA which delivers 20 microjoules between 500 and 750 nm

For fs-VUV experiments, we can use odd and even harmonics of the 800 nm pulses.


Home-Built NOPA(Photo Julien Delavaux)




In ENLOS experiments, the high harmonic radiation is fully characterized:

- the spectrum is measured by a flat-field XUV imaging spectrometer

- the polarization state (ellipticity, angle) is measured by an XUV polarizer

- the phase is measured by two-slit interferometry or transient grating spectroscopy

In fs-VUV experiments, several detectors can be used:

- a simple ion or electron time-of-flight spectrometer

- a magnetic bottle electron spectrometer

- a velocity map imaging spectrometer


Velocity Map Imaging Spectrometer