title: Optical fiber refractometers based on lossy mode resonances supported by TiO2 coatings.
abstract: We obtain lossy mode resonances by the coupling of light from a multimode optical waveguide to a TiO(2)/PSS coating deposited with the layer-by-layer method. The resonances can be generated in a wide wavelength range from the ultraviolet to the infrared region of the optical spectrum. The transmission spectrum is monitored as a function of the number of bilayers deposited, and the experimental results agree with the theoretical predictions. Moreover, each of the resonances owns a particular sensitivity to the external refractive index. This permits us to use the sensor as a refractometer with multiple-wavelength monitorization.
authors.affiliation: Departamento de Ingeniería Eléctrica y Electrónica, Universidad Pública de Navarra, 31006 Pamplona, Spain. miguel.hernaez@unavarra.es
authors.forename: Miguel
authors.initials: M
authors.lastname: Hernáez
authors.forename: Ignacio
authors.initials: I
authors.lastname: Del Villar
authors.forename: Carlos R
authors.initials: CR
authors.lastname: Zamarreño
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Arregui
authors.forename: Ignacio R
authors.initials: IR
authors.lastname: Matias