Chiral Photonic Crystals with 4-fold Symmetry: Band Structure and S-Parameters of Eight-Fold Intergrown Gyroid Nets
Saba M, Turner MD, Gu M, Mecke K, Schröder-Turk G (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 1
Article Number: 89233T
DOI: 10.1117/12.2033820
Abstract
The Single Gyroid, or srs, nanostructure has attracted interest as a circular-polarisation sensitive photonic material. We develop a group theoretical and scattering matrix method, applicable to any photonic crystal with symmetry I432, to demonstrate the remarkable chiral-optical properties of a generalised structure called 8-srs, obtained by intergrowth of eight equal-handed srs nets. Exploiting the presence of four-fold rotations, Bloch modes corresponding to the irreducible representations E$-$ and E+ are identified as the sole and non-interacting transmission channels for right- and left-circularly polarised light, respectively. For plane waves incident on a finite slab of the 8-srs, the reflection rates for both circular polarisations are identical for all frequencies and transmission rates are identical up to a critical frequency below which scattering in the far field is restricted to zero grating order. Simulations show the optical activity of the lossless dielectric 8-srs to be large, comparable to metallic metamaterials, demonstrating its potential as a nanofabricated photonic material.
Authors with CRIS profile
Matthias Saba
Lehrstuhl für Theoretische Physik
Klaus Mecke
Lehrstuhl für Theoretische Physik
Gerd Schröder-Turk
Lehrstuhl für Theoretische Physik
Additional Organisation(s)
Involved external institutions
Australia (AU)How to cite
APA:
Saba, M., Turner, M.D., Gu, M., Mecke, K., & Schröder-Turk, G. (2013). Chiral Photonic Crystals with 4-fold Symmetry: Band Structure and S-Parameters of Eight-Fold Intergrown Gyroid Nets. Proceedings of SPIE, 1. https://dx.doi.org/10.1117/12.2033820
MLA:
Saba, Matthias, et al. "Chiral Photonic Crystals with 4-fold Symmetry: Band Structure and S-Parameters of Eight-Fold Intergrown Gyroid Nets." Proceedings of SPIE 1 (2013).
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