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Abstract:

We present a novel noncontact, photothermal technique, based on the focus error signal of a commercial CD pickup head that allows direct determination of absorption in thin films. Combined with extinction methods, this technique yields the scattering contribution to the losses. Surface plasmon polaritons are excited using the Kretschmann configuration in thin Au films of varying thickness. By measuring the extinction and absorption simultaneously, it is shown that dielectric constants and thickness retrieval leads to inconsistencies if the model does not account for scattering. © 2009 Optical Society of America.

Registro:

Documento: Artículo
Título:Photothermal measurement of absorption and scattering losses in thin films excited by surface plasmons
Autor:Domené, E.A.; Balzarotti, F.; Bragas, A.V.; Martínez, O.E.
Filiación:Laboratorio de Electrónica Cuántica, Departamento de Física, Ciudad Universitaria, (1428) Buenos Aires, Argentina
CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Argentina
Palabras clave:Electromagnetic wave polarization; Excited states; Gold; Plasmons; Absorption and scatterings; Direct determination; Extinction methods; Focus error signal; Kretschmann configuration; Photo-thermal techniques; Photothermal measurements; Surface plasmon polaritons; Thin films; absorption; article; artificial membrane; energy transfer; light; methodology; photon; radiation scattering; refractometry; surface plasmon resonance; thermography; Absorption; Energy Transfer; Light; Membranes, Artificial; Photons; Refractometry; Scattering, Radiation; Surface Plasmon Resonance; Thermography
Año:2009
Volumen:34
Número:24
Página de inicio:3797
Página de fin:3799
DOI: http://dx.doi.org/10.1364/OL.34.003797
Título revista:Optics Letters
Título revista abreviado:Opt. Lett.
ISSN:01469592
CODEN:OPLED
CAS:Membranes, Artificial
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01469592_v34_n24_p3797_Domene

Referencias:

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Citas:

---------- APA ----------
Domené, E.A., Balzarotti, F., Bragas, A.V. & Martínez, O.E. (2009) . Photothermal measurement of absorption and scattering losses in thin films excited by surface plasmons. Optics Letters, 34(24), 3797-3799.
http://dx.doi.org/10.1364/OL.34.003797
---------- CHICAGO ----------
Domené, E.A., Balzarotti, F., Bragas, A.V., Martínez, O.E. "Photothermal measurement of absorption and scattering losses in thin films excited by surface plasmons" . Optics Letters 34, no. 24 (2009) : 3797-3799.
http://dx.doi.org/10.1364/OL.34.003797
---------- MLA ----------
Domené, E.A., Balzarotti, F., Bragas, A.V., Martínez, O.E. "Photothermal measurement of absorption and scattering losses in thin films excited by surface plasmons" . Optics Letters, vol. 34, no. 24, 2009, pp. 3797-3799.
http://dx.doi.org/10.1364/OL.34.003797
---------- VANCOUVER ----------
Domené, E.A., Balzarotti, F., Bragas, A.V., Martínez, O.E. Photothermal measurement of absorption and scattering losses in thin films excited by surface plasmons. Opt. Lett. 2009;34(24):3797-3799.
http://dx.doi.org/10.1364/OL.34.003797