Device physics

Power inequality

Non-reciprocal components are useful in microwave engineering and photonics, but they are not without their drawbacks. A compact design now provides non-reciprocity without resorting to magnets or nonlinearity.

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Figure 1: The dimensions of the reported circulator are subwavelength.

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Correspondence to Ari Sihvola.

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Sihvola, A. Power inequality. Nature Phys 10, 903–904 (2014). https://doi.org/10.1038/nphys3166

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