Abstract

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.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Far-field radiation patterns of second harmonic generation from gold nanoparticles under tightly focused illumination

Jingwei Sun, Xianghui Wang, Shengjiang Chang, Ming Zeng, Si Shen, and Na Zhang
Opt. Express 24(7) 7477-7487 (2016)

Plasmon spectra of nanospheres under a tightly focused beam

Nassiredin M. Mojarad, Vahid Sandoghdar, and Mario Agio
J. Opt. Soc. Am. B 25(4) 651-658 (2008)

Theoretical study of nanophotonic directional couplers comprising near-field-coupled metal nanoparticles

Petter Holmström, Jun Yuan, Min Qiu, Lars Thylén, and Alexander M. Bratkovsky
Opt. Express 19(8) 7885-7893 (2011)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription