Perfect-absorption graphene metamaterials for surface-enhanced molecular fingerprint spectroscopy.
Sign Up to like & getrecommendations! Published in 2018 at "Nanotechnology"
DOI: 10.1088/1361-6528/aab077
Abstract: Graphene plasmon with extremely strong light confinement and tunable resonance frequency represents a promising surface-enhanced infrared absorption (SEIRA) sensing platform. However, plasmonic absorption is relatively weak (approximately 1%-9%) in monolayer graphene nanostructures, which would limit… read more here.
Keywords: surface enhanced; perfect absorption; graphene; spectroscopy ... See more keywords
Toward Ultimate Control of Terahertz Wave Absorption in Graphene
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2018.2889144
Abstract: It is commonly believed that weak light–matter interactions in low-mobility graphene dramatically limits tunability of graphene-based optoelectronic devices, such as tunable absorbers or switches. In this paper, we use a simple circuit model to understand… read more here.
Keywords: mobility; terahertz; graphene; mobility graphene ... See more keywords
Wide-angle high-efficiency absorption of graphene empowered by an angle-insensitive Tamm plasmon polariton.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.481668
Abstract: In recent years, researchers utilized Tamm plasmon polaritons (TPPs) in conventional heterostructures composed of a metal layer, a dielectric spacer layer and an all-dielectric one-dimensional (1-D) photonic crystal (PhC) to achieve high-efficiency absorption of graphene.… read more here.
Keywords: high efficiency; absorption graphene; efficiency absorption;
Enhanced absorption in a graphene embedded 1D guided-mode-resonance structure without back-reflector and interferometrically written gratings.
Sign Up to like & getrecommendations! Published in 2019 at "Optics letters"
DOI: 10.1364/ol.44.003661
Abstract: A theoretical model based on the coupled mode theory is presented to calculate the absorption in a graphene embedded 1D guided-mode-resonance (GMR) structure that does not require a back reflector. The optimized graphene-GMR structure can… read more here.
Keywords: absorption graphene; structure; graphene embedded; reflector ... See more keywords
Tunable high-quality-factor absorption in a graphene monolayer based on quasi-bound states in the continuum
Sign Up to like & getrecommendations! Published in 2022 at "Beilstein Journal of Nanotechnology"
DOI: 10.3762/bjnano.13.59
Abstract: A tunable graphene absorber, composed of a graphene monolayer and a substrate spaced by a subwavelength dielectric grating, is proposed and investigated. Strong light absorption in the graphene monolayer is achieved due to the formation… read more here.
Keywords: graphene; absorption; quasi bound; graphene monolayer ... See more keywords