We experimentally demonstrate the color tuning abilities of two-dimensional periodic arrays of gold nano-patches on silicon substrate. We observe that changes in the geometrical parameters of the array can shift significantly the plasmonic resonance that occurs at the edge of the plasmonic band gap. Experimental proof of this shift is provided by the observation of an important change in the color of the diffracted field. Calculations of the diffracted spectra match the observed color changes very well and provide an efficient means for the design of sensing platforms based on color observation.
Color control through plasmonic metal gratings / M. A., Vincenti; Grande, Marco; D., de Ceglia; T., Stomeo; Petruzzelli, Vincenzo; M., De Vittorio; M., Scalora; D'Orazio, Antonella. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 100:20(2012). [10.1063/1.4718764]
Color control through plasmonic metal gratings
GRANDE, Marco;PETRUZZELLI, Vincenzo;D'ORAZIO, Antonella
2012-01-01
Abstract
We experimentally demonstrate the color tuning abilities of two-dimensional periodic arrays of gold nano-patches on silicon substrate. We observe that changes in the geometrical parameters of the array can shift significantly the plasmonic resonance that occurs at the edge of the plasmonic band gap. Experimental proof of this shift is provided by the observation of an important change in the color of the diffracted field. Calculations of the diffracted spectra match the observed color changes very well and provide an efficient means for the design of sensing platforms based on color observation.| File | Dimensione | Formato | |
|---|---|---|---|
|
6. Petruzzelli.pdf
accesso aperto
Tipologia:
Versione editoriale
Licenza:
Tutti i diritti riservati
Dimensione
922.87 kB
Formato
Adobe PDF
|
922.87 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
