Spectronanoscopy of photonic wires and supercontinuum generation by parametrically coupled Raman sidebands.
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.
Fedotov
Ilya V
IV
Department of Physics, International Laser Center, M. V. Lomonosov Moscow State University, Vorob'evy gory, Moscow, 119992 Russia.
Fedotov
Andrei B
AB
Sidorov-Biryukov
Dmitrii A
DA
Dukel'skii
Konstantin V
KV
Shevandin
Viktor S
VS
Zheltikov
Aleksei M
AM