Figure | Characterization of on-chip q-BIC-assisted metasurface for color routing and intensity tuning. (IMAGE)
Caption
Figure | Characterization of on-chip q-BIC-assisted metasurface for color routing and intensity tuning.a, Schematic of the concept of on-chip q-BIC-assisted metasurface composed of distinct arranged meta-diatomic pairs for color routing. b-c, Schematic illustrating the distinction between on-chip cascading multiplexing and conventional free-space spatial multiplexing color routers. d, SEM image of the fabricated on-chip metasurface sample with varying tilting angle θ from 0° to 20°. Scale bar: 250 nm. e, The experimental spectra of extracted light from different meta-diatomic pairs with the tilting angle θ varying from 0° to 30°.The corresponding parameters are L0 = 90 nm, W0 = 50 nm, and P0 = 374 nm. f, SEM image of the fabricated on-chip metasurface sample with the scaling factor S increases. Scale bar: 250 nm. g, The experimental extraction spectra from different meta-diatom pairs with the scaling factor S varying from 0.88 to 1. The corresponding parameters are L0 = 100 nm, W0 = 60 nm, and P0 = 400 nm while keeping θ fixed at 25°.
Credit
Zhongyang Li et al.
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CC BY