Asymmetric transmission from a 2D PT-symmetric honeycomb nanostructure

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Botey M., Herrero R., Turduev M., Zhao D., Giden I., Kurt H., ...More

16th International Conference on Transparent Optical Networks, ICTON 2014, Graz, Austria, 6 - 10 July 2014 identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/icton.2014.6876621
  • City: Graz
  • Country: Austria
  • Keywords: gain/loss nanomaterials, photonic bandgap materials, photonic crystal, PT-symmetry
  • TED University Affiliated: Yes

Abstract

We propose a simple realization of a 2-dimensonal (2D) PT-symmetric photonic structure: a honeycomb arrangement of alternating cylinders with gain or loss in a dielectric background. The structure provides a periodic modulation of the refractive index on the wavelength scale, which combined with an anti-symmetric gain/loss distribution on the same scale, leads to non-reciprocal light coupling at resonance frequencies. Numerical simulations show asymmetric right-left transmission of light beams. © 2014 IEEE.