Fig. 6: Various SEIRA based on metamaterials.
From: Surface-enhanced spectroscopy technology based on metamaterials
a Fano-resonant dual-phase detection strategy. Corresponding difference absorption shows enhanced molecular signals. Reproduced with permission164. Copyright 2022, Wiley. b Multi-resonance metamaterials for detection of major biomolecules in water. Reproduced with permission170. Copyright 2021, Wiley. c Angle-multiplexed all-dielectric metasurfaces for broadband molecular fingerprint retrieval. Reproduced with permission181. Copyright 2019, AAAS. d Wavelength-multiplexing metamaterials for broadband-enhanced molecular fingerprinting. Reproduced with permission175. Copyright 2022, Springer. e Ultrasensitive molecular fingerprint retrieval using strongly detuned overcoupled plasmonic nanoantennas. Reproduced with permission173. Copyright 2023, Wiley. f Overcoupled resonator for broadband SEIRA. Reproduced with permission182. Copyright 2023, Springer
