6 papers · 1 filter
All-optical switch and logic gates based on all-dielectric hybrid silicon-Ge2Sb2Te5 metamaterials
Zhaojian Zhang, Junbo Yang, Wei Bai +6
We numerically propose an all-dielectric hybrid metamaterial (MM) to realize all-optical switch and logic gates in shortwave infrared (SWIR) band. Such MM consists of one silicon r…
Actively tunable terahertz electromagnetically induced transparency analogue based on vanadium-oxide-assisted metamaterials
Zhaojian Zhang, Junbo Yang, Yunxin Han +6
Recently, phase-change materials (PCMs) have drawn more attention due to the dynamically tunable optical properties. Here, we investigate the active control of electromagnetically…
A plasmonic ellipse resonator possessing hybrid modes for ultracompact chipscale application
Zhaojian Zhang, Junbo Yang, Heng Xu +7
We propose a plasmonic ellipse resonator possessing hybrid modes based on metal-insulator-metal (MIM) waveguide system. Specially, this nanocavity has hybrid characteristic of rect…
On-chip broadband plasmon-induced transparency based on plasmonic metal-insulator-metal waveguides
Zhaojian Zhang, Junbo Yang, Siyu Xu +6
As an analogue of electromagnetically induced transparency (EIT), plasmon-induced transparency (PIT) has been realized both in plasmonic metamaterial and waveguide structures. Via…
Hybridization-induced resonances with high quality factor in a plasmonic concentric ring-disk nanocavity
Zhaojian Zhang, Junbo Yang, Heng Xu +6
Plasmonic resonators have drawn more attention due to the ability to confine light into subwavelength scale. However, they always suffer from a low quality (Q) factor owing to the…
Active control of broadband plasmon-induced transparency in terahertz hybrid metal-graphene metamaterial
Zhaojian Zhang, Junbo Yang, Xin He +5
A hybrid metal-graphene metamaterial (MM) is reported to achieve the active control of the broadband plasmon-induced transparency (PIT) in THz region. The unit cell consists of one…