title: Spectronanoscopy of photonic wires and supercontinuum generation by parametrically coupled Raman sidebands.
abstract: Within a narrow spectral region around the wavelength of zero-group-velocity dispersion of a nonlinear-optical waveguide, phase-matched four-wave mixing couples the Stokes Raman sideband of a pump field to its anti-Stokes counterpart. This wave coupling suggests a sensitive probe for linear and nonlinear-optical parameters of the waveguide, enabling the detection of nanoscopic size variations of microchannel waveguides in photonic-crystal fibers, and facilitates the generation of broadband supercontinuum radiation.
authors.affiliation: Department of Physics, International Laser Center, M. V. Lomonosov Moscow State University, Vorob'evy gory, Moscow, 119992 Russia.
authors.forename: Ilya V
authors.initials: IV
authors.lastname: Fedotov
authors.forename: Andrei B
authors.initials: AB
authors.lastname: Fedotov
authors.forename: Dmitrii A
authors.initials: DA
authors.lastname: Sidorov-Biryukov
authors.forename: Konstantin V
authors.initials: KV
authors.lastname: Dukel'skii
authors.forename: Viktor S
authors.initials: VS
authors.lastname: Shevandin
authors.forename: Aleksei M
authors.initials: AM
authors.lastname: Zheltikov