On-chip integrated metasystem for spin-dependent multi-channel colour holography
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Posted on 2024-05-28 - 20:59
On-chip integrated metasurface driven by in-plane guided waves is of great interests in various light field manipulation applications such as colorful augmented reality and holographic display. However, it remains a challenge to design colorful multichannel holography by a single on-chip metasurface. Here we present metasurfaces integrated on top of guided-wave photonic slab that achieves multi-channel colorful holographic light display. An end-to-end scheme is used to inverse design the metasurface for projecting off-chip preset multiple patterns. Particular examples are presented for customized patterns that were encoded into the metasurface with a single-cell meta-atom, working simultaneously at RGB color channels and for several different diffractive distance, with polarization dependence. Holographic images are generated at 18 independent channels with such a single-cell metasurface. The proposed design scheme is easy to implement and the resulting device is viable to fabrication, promising a plenty of applications in nanophotonics.
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Ma, Zhanying; Liu, Xianjin; Peng, Yuqi; Zhang, Dasen; Liu, Zhenzhen; Xiao, Jun Jun (2024). On-chip integrated metasystem for spin-dependent multi-channel colour holography. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.7183953.v2