title: Femtosecond Enhancement Cavities in the Nonlinear Regime.
abstract: We combine high-finesse optical resonators and spatial-spectral interferometry to a highly phase-sensitive investigation technique for nonlinear light-matter interactions. We experimentally validate an ab initio model for the nonlinear response of a resonator housing a gas target, permitting the global optimization of intracavity conversion processes like high-order harmonic generation. We predict the feasibility of driving intracavity high-order harmonic generation far beyond intensity limitations observed in state-of-the-art systems by exploiting the intracavity nonlinearity to compress the pulses in time.
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Holzberger
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: N
authors.initials: N
authors.lastname: Lilienfein
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Carstens
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Saule
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Högner
authors.affiliation: Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Lücking
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Trubetskov
authors.affiliation: Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: V
authors.initials: V
authors.lastname: Pervak
authors.affiliation: Friedrich-Schiller-Universität Jena, Institut für Angewandte Physik, Albert-Einstein-Straße 15, 07745 Jena, Germany.
authors.forename: T
authors.initials: T
authors.lastname: Eidam
authors.affiliation: Friedrich-Schiller-Universität Jena, Institut für Angewandte Physik, Albert-Einstein-Straße 15, 07745 Jena, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Limpert
authors.affiliation: Friedrich-Schiller-Universität Jena, Institut für Angewandte Physik, Albert-Einstein-Straße 15, 07745 Jena, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Tünnermann
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Fill
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Krausz
authors.affiliation: Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.|Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Pupeza