Observation of acoustic Dirac-like cone and double zero refractive index
نویسندگان
چکیده
منابع مشابه
Observation of acoustic Dirac-like cone and double zero refractive index
Zero index materials where sound propagates without phase variation, holds a great potential for wavefront and dispersion engineering. Recently explored electromagnetic double zero index metamaterials consist of periodic scatterers whose refractive index is significantly larger than that of the surrounding medium. This requirement is fundamentally challenging for airborne acoustics because the ...
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2017
ISSN: 2041-1723
DOI: 10.1038/ncomms14871