Efficient ($\sim$10$\%$) Generation of Vacuum Ultraviolet Femtosecond Pulses via Four-Wave Mixing in Hollow-Core Fibers

Ruaridh Forbes, Paul Hockett, Quentin Leterrier +1

We report the generation of the 5th harmonic of Ti:sapphire, at 160 nm, with more than 4~$\mu$J of pulse energy, and a pulse length of 37 fs with a 1 kHz repetition rate. The VUV pul…