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Near-field coupling of metal nanoparticles under tightly focused illumination


Sancho-Parramon, Jordi
Near-field coupling of metal nanoparticles under tightly focused illumination // Optics letters, 36 (2011), 17; 3257-3259 doi:10.1364/OL.36.003527 (međunarodna recenzija, članak, znanstveni)


Naslov
Near-field coupling of metal nanoparticles under tightly focused illumination

Autori
Sancho-Parramon, Jordi

Izvornik
Optics letters (0146-9592) 36 (2011), 17; 3257-3259

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Surface plasmons; metal optics; multiple scattering

Sažetak
The influence of strongly focused radiation on the electromagnetic interaction of metal particles is studied. The near-field distribution of silver dimers is calculated by combining a multiple scattering approach and the multipolar expansion of focused beams based on the Richards–Wolf description of diffracting systems. The results show that tight focusing can induce larger maximum field enhancement and stronger localization of the near field than can plane wave illumination. Additional plasmonic resonances can be obtained due to the presence of different polarization contributions at focus.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
098-0000000-3191 - Optička svojstva nanostrukturnih slojeva (Hrvoje Zorc, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Autor s matičnim brojem:
Jordi Sancho Parramon, (310502)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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