Article

Journal of Materials Science: Materials in Electronics

, Volume 14, Issue 5, pp 393-395

Planar chiral meta-materials for photonic devices

  • A. PottsAffiliated withDepartment of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK and Department of Electronics and Computer Science, University of Southampton, Highfield
  • , A. PapakostasAffiliated withDepartment of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK and Department of Electronics and Computer Science, University of Southampton, Highfield
  • , N. I. ZheludevAffiliated withDepartment of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK and Department of Electronics and Computer Science, University of Southampton, Highfield
  • , H. J. ColesAffiliated withDepartment of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK and Department of Electronics and Computer Science, University of Southampton, Highfield
  • , R. GreefAffiliated withDepartment of Chemistry, University of Southampton, Highfield
  • , D. M. BagnallAffiliated withDepartment of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, UK and Department of Electronics and Computer Science, University of Southampton, Highfield

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Abstract

We report the first optical results due to the effects of two-dimensional (2D) chirality. Using electron beam lithography we have fabricated arrays of metallic planar chiral structures on dielectric substrates, with characteristic dimensions in the near infra-red, and observed the effects of their chirality on the polarization states of diffracted light. The results showed strong polarization effects, with the handedness of the individual elements having a direct effect on the sense and magnitude of rotation of the diffracted light. We believe such structures could, in the future, form the core of a new class of meta-materials with refractive indices engineered to suit individual optical applications.