Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Interaction between single nano-emitter and plasmonic disk–ring nanostructure with multiple Fano resonances

Not Accessible

Your library or personal account may give you access

Abstract

We study the emission behavior of an electric dipolar nano-emitter coupled with a disk–ring nanostructure (DRN) that sustains multiple plasmonic Fano resonances. The emitter–DRN electromagnetic coupling efficiency strongly depends on the relative position of the nano-emitter and the DRN, which determines whether the multiple Fano interactions are visibly activated. More specifically, for longitudinal polarization, the multiple Fano resonances are pronounced when the nano-emitter is at the outer apex of the disk or at the gap center of the DRN, observable in the far-field and/or near-field characteristics. However, no obvious Fano feature shows up when the nano-emitter is near the outer apex of the ring. For the case in which the nano-emitter oscillates vertically with respect to the DRN axis, Fano resonance is dramatic only when the nano-emitter is inside the gap of the DRN. We show that the cascading amplification of the dipole moment by the nanodisk is crucial for the excitation of the multiple Fano resonances. Our results are useful in engineering plasmon-modified optical spectroscopy and photon emission control, particularly in resonant plasmonic heterostructures.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Fano resonance in dual-disk ring plasmonic nanostructures

Lifang Niu, Jing Bo Zhang, Yuan Hsing Fu, Shripad Kulkarni, and Boris Lukyànchuk
Opt. Express 19(23) 22974-22981 (2011)

Controlling Fano resonance of ring/crescent-ring plasmonic nanostructure with Bessel beam

Fajun Xiao, Weiren Zhu, Malin Premaratne, and Jianlin Zhao
Opt. Express 22(2) 2132-2140 (2014)

Fano resonances in disk–ring plasmonic nanostructure: strong interaction between bright dipolar and dark multipolar mode

Y. Zhang, T. Q. Jia, H. M. Zhang, and Z. Z. Xu
Opt. Lett. 37(23) 4919-4921 (2012)

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 (12)

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 (4)

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

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved