Total transmission and total reflection of acoustic wave by zero index metamaterials loaded with general solid defects
نویسندگان
چکیده
منابع مشابه
Total transmission and total reflection by zero index metamaterials with defects.
We theoretically investigate microwave transmission through a zero-index metamaterial loaded with dielectric defects. The metamaterial is impedance matched to free space, with the permittivity and permeability tending towards zero over a given frequency range. By simply varying the radii and permittivities of the defects, total transmission or reflection of the impinging electromagnetic wave ca...
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We theoretically and experimentally investigate visco–thermal effects on the acoustic propagation throughmetamaterials consisting of rigid slabswith subwavelength slits embedded in air.We demonstrate that this unavoidable lossmechanism is notmerely a refinement, but that it plays a dominant role in the actual acoustic response of the structure. Specifically, in the case of very narrow slits, th...
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In this paper, the reflection and refraction of longitudinal wave from a plane surface separating a micropolar viscoelastic solid half space and a fluid saturated incompressible half space is studied. A longitudinal wave (P-wave) impinges obliquely at the interface. Amplitude ratios for various reflected and transmitted waves have been obtained. Then these amplitude ratios have been computed nu...
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Our research efforts concentrate on focusing photon and sound into sub-wavelength scales. While we emphasize on new insights of material and device design from fundamental approaches, we also actively pursue the applications of our technology in the areas of nanofabrication, energy conversion, communication, and biomedical imaging. Acoustic metamaterials promise new applications for steering an...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2013
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.4832756