Optical Sensing Using Dark Mode Excitation in an Asymmetric Dimer Metamaterial

Optical Sensing Using Dark Mode Excitation in an Asymmetric Dimer Metamaterial

We study the presence of dark and bright modes in a planar metamaterial with a double rod unit cell introducing geometric asymmetry in rod lengths. The dark mode displays a Fano-type resonance with a sharp asymmetric profile, rendering it far more sensitive than the bright mode to slight variations...

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Bibliographic Details
Main Authors: Ndubuisi E. J. Omaghali, Volodymyr Tkachenko, Antonello Andreone, Giancarlo Abbate
Format: Article
Language:English
Published: MDPI AG 2013-12-01
Series:Sensors
Subjects:
metamaterials
Fano resonance
dimer sensor
Online Access:http://www.mdpi.com/1424-8220/14/1/272

Internet

http://www.mdpi.com/1424-8220/14/1/272

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