title: Optical gap solitons in nonresonant quadratic media.
abstract: We demonstrate an important role of the process of optical rectification in the theory of nonlinear wave propagation in quadratically nonlinear [or chi(2)] periodic optical media. We derive a novel physical model for gap solitons in chi(2) nonlinear Bragg gratings.
authors.affiliation: Department of Physics, Faculty of Science, Ehime University, Ehime 790-8577, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Iizuka
authors.forename: Y S
authors.initials: YS
authors.lastname: Kivshar