(IEEE, 2010) Del Villar, Ignacio; Ruiz Zamarreño, Carlos; Hernáez Sáenz de Zaitigui, Miguel; Arregui San Martín, Francisco Javier; Matías Maestro, Ignacio; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
The generation of lossy mode resonances with
absorbing thin-films is analyzed with electromagnetic theory. The
main differences with surface plasmon resonances are presented
and some rules are given towards an optimum design of sensing
devices based on absorbing thin-film coated silica substrates. The
material selected for the absorbing thin-film is ITO, which is
adequate for supporting both surface plasmon resonances and
lossy mode resonances.
(IEEE, 2010) Del Villar, Ignacio; Ruiz Zamarreño, Carlos; Hernáez Sáenz de Zaitigui, Miguel; Arregui San Martín, Francisco Javier; Matías Maestro, Ignacio; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
Surface plasmon resonances and lossy mode
resonances can be generated with Indium Tin Oxide (ITO)
coated optical fibers. Both phenomena are analyzed and
compared. Lossy mode resonances present important
advantages: they do not require a specific polarization of light, it
is possible to generate multiple attenuation bands in the
transmission spectrum, and the sensitivity of the device to
external parameters can be tuned. The key parameter is the
thickness of the ITO coating. The work is supported with both
theoretical and experimental results. The main purposes are
sensing and generation of multiple-wavelength filters.
