Enhanced sensing performance by the plasmonic analogue of electromagnetically induced transparency in active metamaterials

Abstract

The gain-assisted plasmonic analogue of electromagnetically induced transparency (EIT) in a metallic metamaterial is investigated for the purpose to enhance the sensing performance of the EIT-like plasmonic structure. The structure is composed of three bars in one unit, two of which are parallel to each other (dark quadrupolar element) but perpendicular to the third bar (bright dipolar element), The results show that, in addition to the high sensitivity to the refractive-index fluctuation of the surrounding medium, the figure of merit for such active EIT-like metamaterials can be greatly enhanced, which is attributed to the amplified narrow transparency peak.

References in corpus (5)

• Analogue of Electromagnetically Induced Transparency in a Terahertz Metamaterial
• Coupling between a dark and a bright eigenmode in a terahertz metamaterial
• Planar designs for electromagnetically induced transparency in metamaterials
• Frequency-domain simulations of a negative-index material with embedded gain
• Optical loss compensation in a bulk left-handed metamaterial by the gain in quantum dots

Cited by in corpus (8)

• Tunable phonon-induced transparency in bilayer graphene nanoribbons
• Storage of electromagnetic waves in a metamaterial that mimics electromagnetically induced transparency
• Plasmon induced transparency in graphene based terahertz metamaterials
• Implementation of electromagnetically induced transparency in a metamaterial controlled with auxiliary waves
• A modal analysis method to describe weak nonlinear effects in metamaterials
• Lasing oscillation condition and group delay control in gain-assisted plasmon-induced transparency
• Observation of Fano resonance using a coupled resonator metamaterial composed of meta-atoms arranged by double periodicity
• Analogue of double-$\Lambda$-type atomic medium and vector dromions in a plasmonic metamaterial