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arXiv · 1012.2252

Subwavelength electromagnetic diode: one-way response of cascading nonlinear meta-atoms

Yuancheng Fan·Jin Han·Zeyong Wei·Chao Wu·Yang Cao·Xing Yu·Hongqiang Li
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Abstract

We propose a scheme for realizing subwavelength electromagnetic diode by employing cascading nonlinear meta-atoms. One-way response is demonstrated on a microwave transmission line comprising of three metallic ring resonators acting as meta-atoms and a varactor as the nonlinear medium inclusion. Experiments show that our implementation can operate simultaneously as forward diode and backward diode at different frequencies. A transmission contrast of up to 14.7dB was achieved between forward and backward transmission. Subwavelength size of our diode should be useful for miniaturization of integrated optical nanocircuits.

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Yuancheng Fan, Jin Han, Zeyong Wei, Chao Wu, Yang Cao, Xing Yu, Hongqiang Li. 2011-05-31. Subwavelength electromagnetic diode: one-way response of cascading nonlinear meta-atoms. https://doi.org/10.1063/1.3579241

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