Optically tunable terahertz chiral metasurface based on multi-layered graphene.

ABSTRACT: Active manipulation of the polarization states at terahertz frequencies is crucially helpful for polarization-sensitive spectroscopy, having significant applications such as non-contact Hall measurements, vibrational circular dichroism measurements and anisotropy imaging. The weakness of polarization manipulation provided by natural materials can be overcomed by chiral metamaterials. Chiral metamaterials have a huge potential to achieve the necessary polarization effects, hence they provide the basis for applications such as ultracompact polarization components. Terahertz chiral metamaterials that allow dynamic polarization modulation of terahertz waves are of great practical interest and still challenging. Here, we show that terahertz metasurface based on the four conjugated "petal" reson

SUBMITTER: Masyukov M 

PROVIDER: S-EPMC7035278 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature