Generation of nondiffraction beams by using graphene‐based metasurface in terahertz regime
Sign Up to like & getrecommendations! Published in 2020 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32726
Abstract: In this article, a graphene‐based reflective metasurface which can generate Bessel beams at arbitrary directions is proposed at 1.52 THz. It chooses the classical cross structure as the unit cell and extends the coverage of the… read more here.
Keywords: metasurface; graphene based; terahertz regime; nondiffraction ... See more keywords
Anomalous wavefront control of third-harmonic generation via graphene-based nonlinear metasurfaces in the terahertz regime.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.453700
Abstract: Freely controlling wavefronts with metasurfaces has been widely studied in linear optical systems. By constructing phase gradient meta-atoms with nonlinear responses, the wavefronts of high-harmonic fields in nonlinear metasurfaces can be arbitrarily steered by following… read more here.
Keywords: metasurfaces terahertz; nonlinear metasurfaces; terahertz regime; based nonlinear ... See more keywords
3D broadband waveguide cloak and light squeezing in terahertz regime.
Sign Up to like & getrecommendations! Published in 2020 at "Optics letters"
DOI: 10.1364/ol.378826
Abstract: In this work, by engineering a dielectric layer with gradient thickness in a circular waveguide, we present a simple method of realizing a 3D broadband waveguide cloak at terahertz regime. It is numerically shown that… read more here.
Keywords: broadband waveguide; terahertz regime; waveguide cloak; cloak ... See more keywords