Quasi-phase-matching of high-order-harmonic generation using polarization beating in optical waveguides

摘要

A scheme for quasi-phase-matching high-harmonic generation is proposed inwhich polarization beating within a hollow core birefringent waveguidemodulates the generation of harmonics. The evolution of the polarization of alaser pulse propagating in a birefringent waveguide is calculated and is shownto periodically modulate the harmonic generation process. The optimumconditions for achieving quasi-phase-matching using this scheme are exploredand the growth of the harmonic intensity as a function of experimentalparameters is investigated.