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Harnessing electromagnetic waves and quantum materials to improve wireless communication technologies

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Harnessing electromagnetic waves and quantum materials to improve wireless communication technologies
A LPF transmits a multicycle fundamental pulse at ω, which produces a signal at 3ω after nonlinear interactions in a graphene-based sample. The LPF and HPF consist of a superposition of four metasurfaces, but two only are schematically shown here

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