Highly sensitive optical detection of organic materials using asymmetric split ring resonators

N.P. Johnson, B. Lahiri, Richard M. De La Rue, S.G. McMeekin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Asymmetric split ring resonators (A-SRRs) are formed when two separate metallic arcs of different lengths share the same centre-of-curvature. The resonances of the two arcs interact to produce steep slopes in the reflection spectrum. Due to their size they are also known as nano antennas. By depositing very thin films of poly-methyl-methacrylate (PMMA), a shift in resonance reflection spectra is obtained. Similarly, it is known that the spectral position of the A-SRR resonances can be tuned with size.
Original languageEnglish
Title of host publicationMetamaterials VII: Proceedings of the SPIE Conference 2012
Place of PublicationBrussels, Belgium
PublisherSPIE
Volume8423
ISBN (Print)9780819491152
DOIs
Publication statusPublished - 2012

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Keywords

  • optical sensors
  • photonics

Cite this

Johnson, N. P., Lahiri, B., De La Rue, R. M., & McMeekin, S. G. (2012). Highly sensitive optical detection of organic materials using asymmetric split ring resonators. In Metamaterials VII: Proceedings of the SPIE Conference 2012 (Vol. 8423). SPIE. https://doi.org/10.1117/12.922999