Cascaded field enhancement in plasmon resonant dimer nanoantennas compatible with two-dimensional nanofabrication methods | Zendy

Seyfollah Toroghi | Zendy; Pieter G. Kik | Zendy

Open Access

Cascaded field enhancement in plasmon resonant dimer nanoantennas compatible with two-dimensional nanofabrication methods

Author(s) -

Seyfollah Toroghi,

Pieter G. Kik

Publication year - 2012

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4733329

Subject(s) - nanolithography , plasmon , lithography , polarizability , electron beam lithography , nanophotonics , surface plasmon resonance , materials science , nanosphere lithography , field (mathematics) , resonance (particle physics) , dimer , optics , nanotechnology , optoelectronics , nanoparticle , chemistry , physics , fabrication , atomic physics , nuclear magnetic resonance , resist , medicine , alternative medicine , mathematics , pathology , pure mathematics , organic chemistry , layer (electronics) , molecule

Cascaded field enhancement is demonstrated in asymmetric plasmon resonant dimer nanoantennas consisting of shape-tuned ellipsoidal nanoparticles. The nanoparticles that make up the dimer have identical thickness, suggesting that the presented approach can be used to design cascaded dimer antennas compatible with standard two-dimensional top-down nanofabrication tools such as electron beam lithography and nano-imprint lithography. Cascaded excitation is achieved by modification of the in-plane particle aspect ratios in a way that keeps the resonance frequency of the individual particles fixed while significantly changing their polarizability. The achievable field enhancement is evaluated as a function of the particle volume ratio and spacing.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research