Continuously wavelength-tunable high harmonic generation via soliton dynamics


We report the generation of high harmonics in a gas jet pumped by pulses self-compressed in a He-filled hollow-core photonic crystal fiber through the soliton effect. The gas jet is placed directly at the fiber output. As the energy increases, the ionization-induced soliton blueshift is transferred to the high harmonics, leading to emission bands that are continuously tunable from 17 to 45 eV.

Opt. Lett.
John C. Travers
John C. Travers
Professor of Physics