Strong magnetic resonance of coupled aluminum nanodisks on top of a silicon waveguide

Irene Alepuz-Benache; Carlos García-Meca; Francisco J. Rodríguez-Fortuño; Rubén Ortuño; María Lorente-Crespo; Amadeu Griol; Alejandro Martínez

doi:10.1117/12.922300

9 May 2012 Strong magnetic resonance of coupled aluminum nanodisks on top of a silicon waveguide

Irene Alepuz-Benache, Carlos García-Meca, Francisco J. Rodríguez-Fortuño, Rubén Ortuño, María Lorente-Crespo, Amadeu Griol, Alejandro Martínez

Author Affiliations +

Proceedings Volume 8424, Nanophotonics IV; 84242J (2012) https://doi.org/10.1117/12.922300
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We study the electromagnetic behavior of a structure consisting of coupled aluminum nanodisks on a silicon waveguide at telecom wavelengths. Numerical simulations show that the fundamental TE-like waveguide mode excites a localized magnetic plasmon resonance between adjacent nanodisks with suitable dimensions, leading to transmission dips. For a sufficient number of disks (periodically distributed along the propagation direction), the structure supports a magnetic mode arising from a magneto-inductive coupling between neighboring nanodisks, as revealed by an Eigenmode analysis. The transmission response of the samples was measured for both polarizations through an end-fire set-up, confirming that the strong resonances are only present for TE polarization. Measurements and simulations are in good agreement, showing that the resonances strength is maximized for three coupled nanodisks.

Citation Download Citation

Irene Alepuz-Benache, Carlos García-Meca, Francisco J. Rodríguez-Fortuño, Rubén Ortuño, María Lorente-Crespo, Amadeu Griol, and Alejandro Martínez "Strong magnetic resonance of coupled aluminum nanodisks on top of a silicon waveguide", Proc. SPIE 8424, Nanophotonics IV, 84242J (9 May 2012); https://doi.org/10.1117/12.922300

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available