title: Quadratic phase matching in slot waveguides.
abstract: We analyze phase matching with reference to frequency doubling in nanosized quadratic waveguides encompassing form birefringence and supporting cross-polarized fundamental and second-harmonic modes. In an AlGaAs rod with an air void, we show that phase-matched second-harmonic generation could be achieved in a wide spectral range employing state-of-the-art nanotechnology.
authors.affiliation: NooEL-Nonlinear Optics and OptoElectronics Lab, University Roma Tre, Rome, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Di Falco
authors.forename: Claudio
authors.initials: C
authors.lastname: Conti
authors.forename: Gaetano
authors.initials: G
authors.lastname: Assanto