High-order harmonic generation using a high-repetition-rate turnkey laser
arXiv:1409.2725 · doi:10.1063/1.4902819
Abstract
We generate high-order harmonics at high pulse repetition rates using a turnkey laser. High-order harmonics at 400 kHz are observed when argon is used as target gas. In neon we achieve generation of photons with energies exceeding 90 eV (13 nm) at 20 kHz. We measure a photon flux of 4.4 photons per second per harmonic in argon at 100 kHz. Many experiments employing high-order harmonics would benefit from higher repetition rates, and the user-friendly operation opens up for applications of coherent extreme ultra-violet pulses in new research areas.