title: Plasma-induced asymmetric self-phase modulation and modulational instability in gas-filled hollow-core photonic crystal fibers.
abstract: We study theoretically the propagation of relatively long pulses with ionizing intensities in a hollow-core photonic crystal fiber filled with a Raman-inactive noble gas. Because of photoionization, an extremely asymmetric self-phase modulation and a new kind of "universal" plasma-induced modulational instability appear in both normal and anomalous dispersion regions. We also show that it is possible to spontaneously generate a plasma-induced continuum of blueshifting solitons, opening up new possibilities for pushing supercontinuum generation towards shorter and shorter wavelengths.
authors.affiliation: Max Planck Institute for the Science of Light, Günther-Scharowsky str. 1, 91058 Erlangen, Germany.
authors.forename: Mohammed F
authors.initials: MF
authors.lastname: Saleh
authors.forename: Wonkeun
authors.initials: W
authors.lastname: Chang
authors.forename: John C
authors.initials: JC
authors.lastname: Travers
authors.forename: Philip St J
authors.initials: PS
authors.lastname: Russell
authors.forename: Fabio
authors.initials: F
authors.lastname: Biancalana