We numerically investigated second harmonic generation from systems composed of two coupled gold nanowires. The developed method allows one to arbitrarily change the shape of the wire cross section in order to explore the generated and scattered field patterns. Our results suggest that the overall second harmonic generation is related to the electromagnetic energy per unit length stored in the gap area between the wires. These geometrical considerations make further optimization possible. As an example we discuss the possibility to select dipolar emission and/or quadrupolar emission patterns. The selection mechanism responsible for this kind of emission can be traced back to the interaction between nonlinear sources with the surface plasmon resonance of the metallic wires. (C) 2010 Optical Society of America

Engineering the second harmonic generation pattern from coupled gold nanowires / Benedetti, Alessio; Centini, Marco; Sibilia, Concetta; Bertolotti, Mario. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - 27:3(2010), pp. 408-416. [10.1364/josab.27.000408]

Engineering the second harmonic generation pattern from coupled gold nanowires

BENEDETTI, ALESSIO;CENTINI, MARCO;SIBILIA, Concetta;BERTOLOTTI, Mario
2010

Abstract

We numerically investigated second harmonic generation from systems composed of two coupled gold nanowires. The developed method allows one to arbitrarily change the shape of the wire cross section in order to explore the generated and scattered field patterns. Our results suggest that the overall second harmonic generation is related to the electromagnetic energy per unit length stored in the gap area between the wires. These geometrical considerations make further optimization possible. As an example we discuss the possibility to select dipolar emission and/or quadrupolar emission patterns. The selection mechanism responsible for this kind of emission can be traced back to the interaction between nonlinear sources with the surface plasmon resonance of the metallic wires. (C) 2010 Optical Society of America
2010
01 Pubblicazione su rivista::01a Articolo in rivista
Engineering the second harmonic generation pattern from coupled gold nanowires / Benedetti, Alessio; Centini, Marco; Sibilia, Concetta; Bertolotti, Mario. - In: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. B, OPTICAL PHYSICS. - ISSN 0740-3224. - 27:3(2010), pp. 408-416. [10.1364/josab.27.000408]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/225178
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 47
  • ???jsp.display-item.citation.isi??? 44
social impact