Authors Referees APS Members |
Enhanced high harmonic generation from multiply ionized argon above 500 eV through laser pulse self-compressionAccepted Thursday Aug 27, 2009 By combining laser pulse self-compression and high harmonic generation within a single waveguide, we demonstrate high harmonic emission from multiply-charged ions for the first time. This approach enhances the laser intensity and counteracts ionization-induced defocusing, extending the cutoff photon energy in argon above 500 eV for the first time, with higher spectral intensity and cutoff energy than He for the same input laser parameters. This work demonstrates a pathway for extending high harmonic emission to very high photon energies using large, multiply-charged, ions with high ionization potentials. |
