1. Excitation of multiple trapped-eigenmodes in terahertz metamolecule lat.
- Author
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Born, N., Al-Naib, I., Jansen, C., Ozaki, T., Morandotti, R., and Koch, M.
- Subjects
- *
EXCITATION spectrum , *CRYSTAL lattices , *DISPERSIVE interactions , *THIN film sensors , *EIGENANALYSIS - Abstract
We report on the excitation of sharp Fano-like resonances in lattices of metamolecules composed of two differing types of metaatoms. The proposed structures exhibit modes originating from the individual metaatoms as well as a very sharp mode from the collective excitation of the metamolecule lattice as a whole. Next-generation thin film sensors (e.g., for bio/chemical hazard detectors) could especially benefit from such artificial materials. Having multiple modes at different spectral positions enables the characterization of dispersive materials, while the high Q-factors of the eigenmodes lead to a very high sensitivity. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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