title: Elastic light scattering with a LiNbO3 waveguide.
abstract: We present the measurements of hemispherical elastic scattering of light guided by different modes of a planar LiNbO3 waveguide. It is shown that the fundamental and the lowest-order modes are more sensitive to the scattering properties of the air-core interface, whereas higher-order modes are more sensitive to the optical inhomogeneities of the core-substrate interface. We also demonstrate that because of static polarization of LiNbO3 crystal, the air-core interface is sensitive to the presence of dust particles in air, which causes a change in the scattered light based on time of observation. This sensitivity could be used to elaborate compact sensors of air contamination.
authors.affiliation: Laboratoire de la Physique de la Matière Condensée, Université de Nice, France. Valeriy@unice.fr
authors.forename: Valeriy A
authors.initials: VA
authors.lastname: Sterligov
authors.forename: Sergey I
authors.initials: SI
authors.lastname: Lysenko
authors.forename: Pierre
authors.initials: P
authors.lastname: Aschieri
authors.forename: Pascal
authors.initials: P
authors.lastname: Baldi
authors.forename: Loïc
authors.initials: L
authors.lastname: Chanvillard
authors.forename: Micheli Marc
authors.initials: MM
authors.lastname: De