Numerical Simulations of Single-Step Holographic Interferometry for Split-Ring Metamaterial Fabrication by Zhiming Qi, Wenyao Liang

“…Artificial microstructures, especially metamaterials, have garnered increasing attention in numerous applications due to their rich and distinctive properties. Starting from the principle of multi-beam interference, we have theoretically devised a beam configuration consisting of six symmetrically distributed coherent beams to generate two-dimensional microstructures with diverse shapes of unitcells under different polarization combinations. …”
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Dual-channel near-field holographic MIMO communications based on programmable digital coding metasurface and electromagnetic theory by Rui Wen Shao, Jun Wei Wu, Jiachen Li, Shengguo Meng, Yifan Xu, Zheng Xing Wang, Wankai Tang, Qiang Cheng, Shi Jin, Tie Jun Cui

“…Then the information to be transmitted is pre-encoded on PDCM following the principle of direct digital modulations. A PDCM-based holographic MIMO prototype is designed and experimentally verified in microwave frequencies. …”
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