title: Optical second-harmonic scattering from a non-diffusive random distribution of nonlinear domains.
abstract: We show that the weak second harmonic light generated from a random distribution of nonlinear domains of transparent Strontium Barium Niobate crystals can display a particularly intense generation in the forward direction. By using a theoretical model able to analyze the optical response of arbitrary distributions of three-dimensional nonlinear volumes of any shape, we found that the physical origin of this observation can be explained in terms of the scattering of light by a single nonlinear domain.
authors.affiliation: Physics Department, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. jbravo@mit.edu
authors.forename: Jorge
authors.initials: J
authors.lastname: Bravo-Abad
authors.forename: Xavier
authors.initials: X
authors.lastname: Vidal
authors.forename: Jorge L
authors.initials: JL
authors.lastname: Domínguez Juárez
authors.forename: Jordi
authors.initials: J
authors.lastname: Martorell
mesh_terms: D001464:Barium / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D009556:Niobium / Q000737:chemistry*; D017711:Nonlinear Dynamics; D055095:Optics and Photonics / Q000379:methods*; D012542:Scattering, Radiation; D013324:Strontium / Q000737:chemistry*
chemical_list: D009556:Niobium; D001464:Barium; D013324:Strontium