Harmonic distortions enhance circular dichroism of dielectric single gyroids

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autor(en): Hielscher J, Pouya C, Vukusic P, Schroeder-Turk GE
Zeitschrift: Optics Express
Jahr der Veröffentlichung: 2017
Band: 25
Heftnummer: 5
Seitenbereich: 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-Autoren / FAU-Herausgeber

Hielscher, Johannes
Lehrstuhl für Theoretische Physik

Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials

Autor(en) der externen Einrichtung(en)
Murdoch University
University of Exeter


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.


Zuletzt aktualisiert 2019-20-03 um 19:08