Efficient VUV generation in gas jet targets

Efficient third harmonic generation was recently demonstrated in Ar gas using ultrashort KrF laser pulses on a gas jet targets. The efficient generation became possible due to an atomic 3-photon resonance.Within the frames of the XTRA Marie-Curie network the precise characterization and optimization of the conversion to 82.8 nm radiation is to be carried out, which opens possibilities for further applications.