title: Plasmon induced transparency in cascaded π-shaped metamaterials.
abstract: We experimentally and numerically demonstrate a planar metamaterial consisting of two asymmetrically positioned π-structures in a single unit that exhibits plasmonic analogue of electromagnetically induced transparency (EIT). Through the coupling of the constituent nanorod elements, the proposed structure enables fine spectral tuning of the EIT-like behavior and controlling the location of near field enhancement. Originated from the asymmetric cascaded π-structures, we introduce a more compact system which possesses the EIT-like characteristics and as well as much smaller mode volumes. Due to these properties, the proposed metamaterials can be utilized for a wide range of applications including bio-chemical sensors, optical filters and modulators and enhancement of non-linear processes.
authors: Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, USA.
authors: Arif E
authors: AE
authors: Cetin
authors: Alp
authors: A
authors: Artar
authors: Mustafa
authors: M
authors: Turkmen
authors: Ahmet Ali
authors: AA
authors: Yanik
authors: Hatice
authors: H
authors: Altug