Study of super absorption properties of 1D graphene and dielectric photonic crystal for novel applications
Sign Up to like & getrecommendations! Published in 2020 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-020-02548-6
Abstract: In this article, we have theoretically analyzed the variation of real and imaginary components of electric permittivity and also the variation of refractive index of the graphene material in the Terahertz frequency range. The optical… read more here.
Keywords: properties graphene; absorption properties; study super; graphene dielectric ... See more keywords
A dynamically tunable and wide-angle terahertz absorber based on graphene-dielectric grating
Sign Up to like & getrecommendations! Published in 2020 at "Modern Physics Letters B"
DOI: 10.1142/s0217984920502929
Abstract: We theoretically and numerically demonstrate a tunable and wide-angle terahertz absorber, which is composed of multilayer graphene-dielectric grating and bottom metal substrate. Numerical simulatio... read more here.
Keywords: terahertz absorber; dielectric grating; wide angle; graphene dielectric ... See more keywords
Enhanced Terahertz Amplification Based on Photo-Excited Graphene-Dielectric Hybrid Metasurface
Sign Up to like & getrecommendations! Published in 2020 at "Nanomaterials"
DOI: 10.3390/nano10122448
Abstract: Graphene under optical pump has been shown to be an attractive gain medium with negative dynamic conductivity at terahertz frequencies. However, the amplification over a monolayer graphene is very weak due to its one-atom thickness.… read more here.
Keywords: amplification based; terahertz amplification; graphene dielectric; metasurface ... See more keywords