Non-Reciprocal Geometric Wave Diode by Engineering Asymmetric Shapes of Nonlinear Materials
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li-2014-non-reciprocal geometric.pdf
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2.44 MB
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Adobe PDF
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3c03f9a17073fc2884ead90890607e49
Author(s)
Li, Nianbei
Ren, Jie
Date Issued
August 2014
Journal
Scientific Reports
Publisher
Nature Publishing Group
Citation
Li, Nianbei, and Jie Ren. “Non-Reciprocal Geometric Wave Diode by Engineering Asymmetric Shapes of Nonlinear Materials.” Sci. Rep. 4 (August 29, 2014): 6228.
Version
Final published version
Abstract
Unidirectional nonreciprocal transport is at the heart of many fundamental problems and applications in both science and technology. Here we study the novel design of wave diode devices by engineering asymmetric shapes of nonlinear materials to realize the function of non-reciprocal wave propagations. We first show analytical results revealing that both nonlinearity and asymmetry are necessary to induce such non-reciprocal (asymmetric) wave propagations. Detailed numerical simulations are further performed for a more realistic geometric wave diode model with typical asymmetric shape, where good non-reciprocal wave diode effect is demonstrated. Finally, we discuss the scalability of geometric wave diodes. The results open a flexible way for designing wave diodes efficiently simply through shape engineering of nonlinear materials, which may find broad implications in controlling energy, mass and information transports.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1038/srep06228
