A recent study led by Dr. Ruiwen Shao and Prof. Junwei Wu from the Institute of Electromagnetic Space at Southeast University in Nanjing, China, explores the intricate dynamics of scattered waves in digital metasurfaces. Utilizing the technique of singular value decomposition (SVD), Dr. Shao discovered a fascinating discrepancy: the count of non-zero singular values does not precisely match the number of meta-atoms within the metasurface. Instead, it is approximately equal, shedding light on the complex behavior of these electromagnetic structures.“This is a very unusual result, which is contrary to the previous modeling method of metasurface,” Shao says.

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