195 citations · 522 across the 11 of their papers we have counts for
11 papers
Hybrid Graphene-Plasmon Gratings
Tianjing Guo, Christos Argyropoulos
Graphene can support surface plasmons with higher confinement, lower propagation loss, and substantially more tunable response compared to usual metal-based plasmonic structures. I…
Nonreciprocal transmission of electromagnetic waves with nonlinear active plasmonic metasurfaces
Tianjing Guo, Christos Argyropoulos
Nonreciprocity is important for optical information processing, full-duplex communications, and protection of sensitive laser equipment from unwanted reflections. However, it is ve…
Recent advances in terahertz photonic technologies based on graphene and their applications
Tianjing Guo, Christos Argyropoulos
Graphene is a unique two-dimensional (2D) material that has been extensively investigated owing to its extraordinary photonic, electronic, thermal, and mechanical properties. Excit…
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…