title: Spectral broadening of ultrashort pulses in a nonlinear medium.
abstract: Spectral superbroadening of ultrashort-pulse propagation in a nonlinear medium is calculated by solving the nonlinear-wave equation more exactly. The effects of four-wave mixing and pulse deformation on phase modulation are included. The results yield an asymmetric Stokes-anti-Stokes broadening in fair agreement with the experimental observation.
authors.forename: G
authors.initials: G
authors.lastname: Yang
authors.forename: Y R
authors.initials: YR
authors.lastname: Shen