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Reversal of transmission and reflection based on acoustic metagratings with integer parity design.

Publication ,  Journal Article
Fu, Y; Shen, C; Cao, Y; Gao, L; Chen, H; Chan, CT; Cummer, SA; Xu, Y
Published in: Nature communications
May 2019

Phase gradient metagratings (PGMs) have provided unprecedented opportunities for wavefront manipulation. However, this approach suffers from fundamental limits on conversion efficiency; in some cases, higher order diffraction caused by the periodicity can be observed distinctly, while the working mechanism still is not fully understood, especially in refractive-type metagratings. Here we show, analytically and experimentally, a refractive-type metagrating which can enable anomalous reflection and refraction with almost unity efficiency over a wide incident range. A simple physical picture is presented to reveal the underlying diffraction mechanism. Interestingly, it is found that the anomalous transmission and reflection through higher order diffraction can be completely reversed by changing the integer parity of the PGM design, and such phenomenon is very robust. Two refractive acoustic metagratings are designed and fabricated based on this principle and the experimental results verify the theory.

Duke Scholars

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Published In

Nature communications

DOI

EISSN

2041-1723

ISSN

2041-1723

Publication Date

May 2019

Volume

10

Issue

1

Start / End Page

2326
 

Citation

APA
Chicago
ICMJE
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Fu, Y., Shen, C., Cao, Y., Gao, L., Chen, H., Chan, C. T., … Xu, Y. (2019). Reversal of transmission and reflection based on acoustic metagratings with integer parity design. Nature Communications, 10(1), 2326. https://doi.org/10.1038/s41467-019-10377-9
Fu, Yangyang, Chen Shen, Yanyan Cao, Lei Gao, Huanyang Chen, C. T. Chan, Steven A. Cummer, and Yadong Xu. “Reversal of transmission and reflection based on acoustic metagratings with integer parity design.Nature Communications 10, no. 1 (May 2019): 2326. https://doi.org/10.1038/s41467-019-10377-9.
Fu Y, Shen C, Cao Y, Gao L, Chen H, Chan CT, et al. Reversal of transmission and reflection based on acoustic metagratings with integer parity design. Nature communications. 2019 May;10(1):2326.
Fu, Yangyang, et al. “Reversal of transmission and reflection based on acoustic metagratings with integer parity design.Nature Communications, vol. 10, no. 1, May 2019, p. 2326. Epmc, doi:10.1038/s41467-019-10377-9.
Fu Y, Shen C, Cao Y, Gao L, Chen H, Chan CT, Cummer SA, Xu Y. Reversal of transmission and reflection based on acoustic metagratings with integer parity design. Nature communications. 2019 May;10(1):2326.

Published In

Nature communications

DOI

EISSN

2041-1723

ISSN

2041-1723

Publication Date

May 2019

Volume

10

Issue

1

Start / End Page

2326