Asymmetric slot-waveguide scatterers produce high-efficiency, large-angle diffraction gratings in simulation, reaching 94.4% efficiency at 47 degrees deflection and an 80-degree-separation polarization beamsplitter at about 80% efficiency.
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Large-Angle, Broadband and Multifunctional Gratings Based on Directively Radiating Waveguide Scatterers
Asymmetric slot-waveguide scatterers produce high-efficiency, large-angle diffraction gratings in simulation, reaching 94.4% efficiency at 47 degrees deflection and an 80-degree-separation polarization beamsplitter at about 80% efficiency.