Mapping the sensitivity of split ring resonators using a localized analyte

Abstract

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Biomedical Optical Sensing Using Nano-/Micro-Structured Metamaterials

“…Reasonably typical metasurfaces are produced as uniform arrays of individual metallic film patterns, e.g. split-ring resonators (SRRs) and asymmetric split-ring resonators (ASRRs) [3][4][5][6][7], FRAMMs [8] (Fano-resonant asymmetric metamaterials) and split-H structures (ASHs) [9,10], on dielectric substrates. Such dielectric substrates should, of course, be transparent at the operating wavelength, for situations where the observation is based on resonant changes (e.g.…”

Dual polarization operation of nanostructure arrays in the mid-infrared

“…In many cases, metallic nanostructures (MNs) exhibit a single characteristic plasmonic resonance peak operating in the MIR region 2 and a strongly polarization dependent response. The independent and single polarization operation metallic nanostructures that have been reported so far have typically produced Q-factor values in the range from 3.5 to 7 [1][2][3]8 . A Q-factor of 13.9 was produced from the Fano resonance of an A-SRR structure 9 .…”

Array metasurfaces for biomedical sensing at infra-red wavelengths

“…silica glass) substrates. A variety of elementary structures have been described in the literature -including asymmetric split H-shaped (ASH) structures [1], single-gap split-ring resonator (SRR) structures [2,3] and double-gap asymmetric split-ring resonator (ASRR) structures [4][5][6]. ASH structures are of particular interest because of their ability to operate effectively in orthogonal polarisation situations.…”