Harmonic distortions enhance circular dichroism of dielectric single gyroids

Journal article

Publication Details

Author(s): Hielscher J, Pouya C, Vukusic P, Schroeder-Turk GE
Journal: Optics Express
Publication year: 2017
Volume: 25
Journal issue: 5
Pages range: 5001-5017
ISSN: 1094-4087


The departure from strict periodic order in two-phase dielectric materials can offer properties that are otherwise inaccessible to perfectly ordered photonic crystals. Herewith, we investigate the circular dichroism of the single gyroid photonic crystal in the presence of spatial distortions. FDTD simulations and microwave transmission measurements on 3D-printed replicas show that certain harmonic long-wavelength spatial distortions (\dqsinusoidal chirp\dq) nearly doubles the imbalance of the circular polarisation reflectances, as well as significantly strengthens polarisation-incoherent reflectance. The observed changes are partially rationalised by comparison with simpler distortion models (linear chirp and tetragonal deformation) of the Gyroid.

FAU Authors / FAU Editors

Hielscher, Johannes
Lehrstuhl für Theoretische Physik

Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials

External institutions
Murdoch University
University of Exeter

How to cite

Hielscher, J., Pouya, C., Vukusic, P., & Schroeder-Turk, G.E. (2017). Harmonic distortions enhance circular dichroism of dielectric single gyroids. Optics Express, 25(5), 5001-5017. https://dx.doi.org/10.1364/OE.25.005001

Hielscher, Johannes, et al. "Harmonic distortions enhance circular dichroism of dielectric single gyroids." Optics Express 25.5 (2017): 5001-5017.


Last updated on 2019-20-03 at 19:08