Double excitation of surface modes at uniaxial-metal-isotropic films
We study the double excitation of surface modes at a metallic film that separates a uniaxial medium from an isotropic dielectric. We find that, for certain constitutive parameters of the structure, two normal modes can be associated to the film. It is found that the distance in the complex plane bet...
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1997
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10944087_v1_n9_p250_Gigli http://hdl.handle.net/20.500.12110/paper_10944087_v1_n9_p250_Gigli |
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paper:paper_10944087_v1_n9_p250_Gigli2023-06-08T16:06:54Z Double excitation of surface modes at uniaxial-metal-isotropic films Anisotropy Attenuation Dielectric materials Guided electromagnetic wave propagation Light reflection Resonance Second harmonic generation Surface waves Tensors Thin films Attenuated total reflection (ATR) Dielectric media Isotropic structures Surface modes (SM) Metallic films We study the double excitation of surface modes at a metallic film that separates a uniaxial medium from an isotropic dielectric. We find that, for certain constitutive parameters of the structure, two normal modes can be associated to the film. It is found that the distance in the complex plane between the propagation constants of these modes can be considerably reduced by tuning conveniently film parameters, although the propagation constants are "reluctant" to coincide. We also show that a plane wave incident on the film from the crystal side can excite both modes simultaneously, without corrugating the surface or adding another layer. We obtain values of the film width for which the resonances appear at similar angles of incidence and show that these excitations are accompanied by an important increase of the power absorbed by the film and an enhancement of the fields at the two interfaces. © 1997 Optical Society of America. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10944087_v1_n9_p250_Gigli http://hdl.handle.net/20.500.12110/paper_10944087_v1_n9_p250_Gigli |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Anisotropy Attenuation Dielectric materials Guided electromagnetic wave propagation Light reflection Resonance Second harmonic generation Surface waves Tensors Thin films Attenuated total reflection (ATR) Dielectric media Isotropic structures Surface modes (SM) Metallic films |
| spellingShingle |
Anisotropy Attenuation Dielectric materials Guided electromagnetic wave propagation Light reflection Resonance Second harmonic generation Surface waves Tensors Thin films Attenuated total reflection (ATR) Dielectric media Isotropic structures Surface modes (SM) Metallic films Double excitation of surface modes at uniaxial-metal-isotropic films |
| topic_facet |
Anisotropy Attenuation Dielectric materials Guided electromagnetic wave propagation Light reflection Resonance Second harmonic generation Surface waves Tensors Thin films Attenuated total reflection (ATR) Dielectric media Isotropic structures Surface modes (SM) Metallic films |
| description |
We study the double excitation of surface modes at a metallic film that separates a uniaxial medium from an isotropic dielectric. We find that, for certain constitutive parameters of the structure, two normal modes can be associated to the film. It is found that the distance in the complex plane between the propagation constants of these modes can be considerably reduced by tuning conveniently film parameters, although the propagation constants are "reluctant" to coincide. We also show that a plane wave incident on the film from the crystal side can excite both modes simultaneously, without corrugating the surface or adding another layer. We obtain values of the film width for which the resonances appear at similar angles of incidence and show that these excitations are accompanied by an important increase of the power absorbed by the film and an enhancement of the fields at the two interfaces. © 1997 Optical Society of America. |
| title |
Double excitation of surface modes at uniaxial-metal-isotropic films |
| title_short |
Double excitation of surface modes at uniaxial-metal-isotropic films |
| title_full |
Double excitation of surface modes at uniaxial-metal-isotropic films |
| title_fullStr |
Double excitation of surface modes at uniaxial-metal-isotropic films |
| title_full_unstemmed |
Double excitation of surface modes at uniaxial-metal-isotropic films |
| title_sort |
double excitation of surface modes at uniaxial-metal-isotropic films |
| publishDate |
1997 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10944087_v1_n9_p250_Gigli http://hdl.handle.net/20.500.12110/paper_10944087_v1_n9_p250_Gigli |
| _version_ |
1768544789391736832 |