Figure | Experimental characterization for the on-chip meta-holography and AR demonstration. (IMAGE)
Caption
Figure | Experimental characterization for the on-chip meta-holography and AR demonstration. a, The on-chip metasurface is integrated onto the waveguide sitting on a transparent substrate to project LCP/RCP holographic images. The insets illustrate the phase distributions of the extracted LCP component for dielectric (Si) and metal (Al) materials. b, Optical setup to characterize the on-chip meta-holography. LP: linear polarizer. QWP: quarter-wave plate. Inset: SEM image of the metasurface sample. Scale bar: 500 nm. c, Measured LCP holographic image of “Key” and RCP holographic image of “Lock”. d, Actual experimental setup for the AR demonstration. The mobile phone camera captures virtual images floating on the background (green dashed frame) with no images present in the background picture (blue dashed frame). e, Experimentally captured AR images of a green “Key” and a green “Lock” floating on top of the background picture.
Credit
Cheng Yi et al.
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CC BY