29 citations · 37 across the 5 of their papers we have counts for
5 papers
Giant THz surface plasmon polariton induced by high-index dielectric metasurface
Shuai Lin, Khagendra Bhattarai, Jiangfeng Zhou +1
We use computational approaches to explore the role of a high-refractive-index dielectric TiO2 grating with deep subwavelength thickness on InSb as a tunable coupler for THz surfac…
Metamaterial Perfect Absorber Analyzed by a Meta-cavity Model Consisting of Multilayer Metasurfaces
Khagendra Bhattarai, Sinhara Silva, Kun Song +4
We demonstrate that the metamaterial perfect absorber behaves as a meta-cavity bounded between a resonant metasurface and a metallic thin-film reflector. The perfect absorption is…
Low-loss Broadband Negative Refractive Index due to Nonresonant 2D Helical Chiral Metamaterial
Kun Song, Min Wang, Zhaoxian Su +6
We demonstrated a 2D helical chiral metamaterial that exhibits broadband strong optical activity resulting nonresonant Drude-like response. The strong chirality leads to broadband…
Broadband angle- and permittivity-insensitive nondispersive optical activity based on chiral metamaterials
Kun Song, Min Wang, Zhaoxian Su +6
Because of the strong inherent resonances, the giant optical activity obtained via chiral metamaterials generally suffers from high dispersion, which has been a big stumbling block…
Thin InSb layers with metallic gratings: a novel platform for spectrally-selective THz plasmonic sensing
Shuai Lin, Khagendra Bhattarai, Jiangfeng Zhou +1
We present a computational study of terahertz optical properties of a grating-coupled plasmonic structure based on micrometer-thin InSb layers. We find two strong absorption resona…