16 citations · 16 across the 1 of their papers we have counts for
5 papers
Tunable and broadband coherent perfect absorbers with nonlinear and amplification performance based on asymmetric bifacial graphene metasurfaces
Tianjing Guo, Christos Argyropoulos
We present an asymmetric bifacial graphene metasurface to realize tunable and broadband coherent perfect absorption (CPA) at terahertz (THz) frequencies. The proposed design is com…
Tunable THz generation and enhanced nonlinear effects with active and passive graphene hyperbolic metamaterials
Boyuan Jin, Tianjing Guo, Liang Zhu +2
The active and nonlinear graphene properties are limited due to weak light matter interaction between the ultrathin graphene and the incident light. In this work, we present enhanc…
Tunable nonlinear and active THz devices based on hybrid graphene metasurfaces
Tianjing Guo, Christos Argyropoulos
Graphene is a two-dimensional layer of carbon atoms arranged in a honeycomb lattice, whose outstanding properties makes it an excellent material for future electronic and photonic…
Tunable and Broadband Coherent Perfect Absorption by Ultrathin Black Phosphorus Metasurfaces
Tianjing Guo, Christos Argyropoulos
Black phosphorus (BP), a relative new plasmonic two-dimensional (2D) material, offers unique photonic and electronic properties. In this work, we propose a new tunable and broadban…
Tunable Terahertz Amplification Based on Photoexcited Active Graphene Hyperbolic Metamaterials
Tianjing Guo, Liang Zhu, Pai-Yen Chen +1
The efficient amplification and lasing of electromagnetic radiation at terahertz (THz) frequencies is a non-trivial task achieved mainly by quantum cascade laser configurations wit…