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. 2020 Jul 10;6(28):eaba8595. doi: 10.1126/sciadv.aba8595

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Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).

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Fig. 3 — (A) Structured laser beam opens specific space channel combinations and reconstructs the target image. (B) First and third rows: 10 typical examples varying from 00:00 to 99:99; second and fourth rows: corresponding space channel coding pattern of DMD. (C) Optical image of fabricated metasurface and enlarged view of one space channel. Scale bars, 100 and 30 μm. (D) Experimental results of dynamic space channel multiplexing meta-hologram and corresponding pattern of structured laser beam.