Abstract

The absorption of visible light by silver nanoparticles in two-dimensional arrays is investigated using a finite difference time domain algorithm. The results of the calculations show that for all shapes considered, spheres and triangular and rectangular prisms, there is reduced absorption when the particles become more densely packed within the array. The effect is seen to be more pronounced for rectangular and triangular prisms. Investigation of the electromagnetic field very close to the tip of the prism shows that the intensity is very sensitive to the separation between the nanoparticles, with the electric field increasing significantly as the spacing between the particles reduces.

© 2011 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Study of localized surface-plasmon-resonance-based optical fiber sensor

Rani Dutta, Reshma Bharadwaj, Soumyo Mukherji, and Tapanendu Kundu
Appl. Opt. 50(25) E138-E144 (2011)

Nanostructures for surface plasmons

Junxi Zhang and Lide Zhang
Adv. Opt. Photon. 4(2) 157-321 (2012)

Effects of a silicon probe on gold nanoparticles on glass under evanescent illumination

Gazi M. Huda, Eugenii U. Donev, M. Pinar Mengüç, and J. Todd Hastings
Opt. Express 19(13) 12679-12687 (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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Figures (9)

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

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

Equations (4)

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

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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