Journalartikel

Jahr der Veröffentlichung: 2022

Zeitschrift: physica status solidi - Rapid Research Letters

Bandnummer: 16

Heftnummer: 2

ISSN: 1862-6254

eISSN: 1862-6270

Open Access Status: Green

DOI Link: https://doi.org/10.1002/pssr.202100571

Verlag: Wiley

Abstract: 
Chiral photonics opens new pathways to manipulate light-matter interactions and tailor the optical response of metasurfaces and -materials by nanostructuring nontrivial patterns. Chirality of matter, such as that of molecules, and light, which in the simplest case is given by the handedness of circular polarization, have attracted much attention for applications in chemistry, nanophotonics and optical information processing. The design of chiral photonic structures using two machine learning methods, the evolutionary algorithm, and neural network approach, for rapid and efficient optimization of optical properties for dielectric metasurfaces, is reported. The design recipes obtained for visible light in the range of transition-metal dichalcogenide exciton resonances show a frequency-dependent modification in the reflected light's degree of circular polarization, that is represented by the difference between left- and right-circularly polarized intensity. Our results suggest the facile fabrication and characterization of optical nanopatterned reflectors for chirality-sensitive light-matter coupling scenarios employing tungsten disulfide as possible active material with features such as valley Hall effect and optical valley coherence.

Harvard-Zitierstil: Mey, O. and Rahimi-Iman, A. (2022) Machine Learning-Based Optimization of Chiral Photonic Nanostructures: Evolution- and Neural Network-Based Designs, physica status solidi - Rapid Research Letters, 16(2), Article 2100571. https://doi.org/10.1002/pssr.202100571

APA-Zitierstil: Mey, O., & Rahimi-Iman, A. (2022). Machine Learning-Based Optimization of Chiral Photonic Nanostructures: Evolution- and Neural Network-Based Designs. physica status solidi - Rapid Research Letters. 16(2), Article 2100571. https://doi.org/10.1002/pssr.202100571