Largely Tunable Terahertz Circular Polarization Splitters Based on Patterned Graphene Nanoantenna Arrays

Largely Tunable Terahertz Circular Polarization Splitters Based on Patterned Graphene Nanoantenna Arrays

Blog Article

Dynamic manipulation of wavefront is vital for massive free-space optical applications.Here we propose a set of largely tunable circular polarization splitters leveraging graphene nanoantennas with high efficiency reaching 83% and wide frequency tunability 330 gph filter pump range of 2 to 5 THz.By synergizing the electrically tunable surface plasmons of graphene with phase gradient metasurface, we numerically demonstrate two kinds of polarization splitters with complimentary graphene patterns to realize electrical tuning of operation frequency and efficient circular polarization demultiplexing.Using antennas of different geometric sizes, the focusrite rednet r1 device performances are investigated in several different terahertz bands.

Our proposed structures can facilitate dynamically tunable broadband and high-speed applications such as polarization demultiplexing and optical switches in terahertz regime.