File:1-4-RelacionDispersion.png
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Captions
Captions
Dispersion relation of the bulk plasmon, surface plasmon polariton and electromagnetic wave
Summary[edit]
| Description |
Español: Relación de dispersión en términos de la frecuencia angular normalizada por la frecuencia de plasma ($\omega/\omega_p$), como función del parámetro adimencional $k_xc/\omega_p$ (proyección perpendicuar del vector de onda multiplicada por la velocidad de la luz y dividida por la frecuencia de plasma) de una onda plana monocromática en vacío (línea sólida negra), del plasmón de volumen (línea sólida roja) y del plasmón polaritón de superficie (línea sólida azul) para materiales con una función dieléctrica tipo Drude, considerando una interfaz entre estos materiales y el vacío. Para excitar a un plasmón polariton de superficie es necesario cambiar el índice de refracción del medio dieléctrico que define una interfaz con el medio metálico, por ejemplo empleando un prisma para obtener una onda plana viajando en vidrio (línea punteada negra); la región sombreada delimita las frecuencias a las que el plasmón polariton de superficie puede excitarse.
English: Dispersion relation in terms of the angular frequency normalized by the plasma frequency ($\omega/\omega_p$), as a function of the adimensional parameter $ k_xc / \ omega_p $ (perpendicular projection of the wave vector multiplied by the speed of light and divided by the plasma frequency) of a monochromatic plane wave in vacuum (black solid line), of the volume plasmon (red solid line) and of the surface polariton plasmon (blue solid line) for materials with a Drude-type dielectric function, considering an interface between these materials and the vacuum. To excite a surface polariton plasmon, it is necessary to change the refractive index of the dielectric medium that defines an interface with the metallic medium, for example using a prism to obtain a plane wave traveling in glass (black dotted line); the shaded region delimits the frequencies at which the surface polariton plasmon can be excited. |
| Date | |
| Source | Own work |
| Author | Jaurrutia |
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| current | 21:00, 23 January 2021 | | 3,459 × 2,225 (334 KB) | Jaurrutia (talk | contribs) | Uploaded own work with UploadWizard |
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