Title :
Enhancement of Fano resonance in metal/dielectric/metal metamaterials at optical regime
Author :
Chenwei Wei ; Lei Zhang ; Tun Cao
Author_Institution :
Dept. of Biomed. Eng., Dalian Univ. of Technol., Dalian, China
Abstract :
Fano resonance (FR) within the transmission spectrum is demonstrated in the near infrared (NIR) region using elliptical nanoholes array (ENA) embedding through metal-dielectric-metal (MDM) layers. For the symmetric MDM-ENA, a FR that was thought to be mostly produced by the asymmetric metamaterials is excited. This FR response is attributed to the interplay between the bright modes and dark modes, where the bright modes originate from the electric resonance (localized surface plasmon resonance) caused by the ENA and the dark modes are due to the magnetic resonance (inductive-capacitive resonance) induced by the MDM multilayers.
Keywords :
MIM structures; infrared spectra; magnetic resonance; nanophotonics; nanostructured materials; optical arrays; optical metamaterials; optical multilayers; surface plasmon resonance; Fano resonance; asymmetric metamaterials; bright modes; dark modes; electric resonance; elliptical nanohole array; inductive-capacitive resonance; localized surface plasmon resonance; magnetic resonance; metal-dielectric-metal layers; metal-dielectric-metal metamaterials; metal-dielectric-metal multilayers; near infrared region; optical regime; transmission spectrum; Dielectrics; Magnetic confinement; Magnetic multilayers; Magnetic resonance; Metamaterials; Nonhomogeneous media; Plasmons;
Conference_Titel :
Control & Automation (ICCA), 11th IEEE International Conference on
Conference_Location :
Taichung
DOI :
10.1109/ICCA.2014.6871104
