Asymmetric transmission from a 2D PT-symmetric honeycomb nanostructure
16th International Conference on Transparent Optical Networks, ICTON 2014, Graz, Avusturya, 6 - 10 Temmuz 2014, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/icton.2014.6876621
- Basıldığı Şehir: Graz
- Basıldığı Ülke: Avusturya
- Anahtar Kelimeler: gain/loss nanomaterials, photonic bandgap materials, photonic crystal, PT-symmetry
- Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
- TED Üniversitesi Adresli: Evet
Özet
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.