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Opt Express. 2008 Oct 13;16(21):17052-9.

Quasi-phase-matched high harmonic generation in hollow core photonic crystal fibers.

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  • 1Max-Planck Research Group, IOIP, University of Erlangen-N├╝rnberg, Erlangen, Germany


The potential of hollow core photonic crystal fiber as a nonlinear gas cell for efficient high harmonic generation is discussed. The feasibility of phase-matching this process by modulating the phase of ionization electrons using a counter-propagating laser field is shown. In this way, harmonics with energies of several hundreds of eV can be produced using fs-laser pump pulses of microJ energy.

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