Simulating transient wave phenomena in acoustic metamaterials using auxiliary fields
نویسندگان
چکیده
منابع مشابه
Manipulating the Acoustic Wave by Acoustic Metamaterials
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...
متن کاملAcoustic wave science realized by metamaterials
Artificially structured materials with unit cells at sub-wavelength scale, known as metamaterials, have been widely used to precisely control and manipulate waves thanks to their unconventional properties which cannot be found in nature. In fact, the field of acoustic metamaterials has been much developed over the past 15 years and still keeps developing. Here, we present a topical review of me...
متن کاملAcoustic wave transparency for a multilayered sphere with acoustic metamaterials.
By analogy with the electromagnetic wave, the acoustic transparency phenomenon is analyzed for a multilayered sphere with acoustic metamaterials. The neutral-inclusion concept is used to predict the transparency conditions in the quasistatic case, which are further confirmed by a full-wave analysis. The mechanism of the transparency is based on lowering the total-scattering cross section of the...
متن کاملStudy of elementary surface acoustic wave phenomena
– Many attempts have been made in acoustic microscopy to both achieve nanometer lateral resolution and sub-Å wave amplitude detection. Employing a scanning acoustic force microscopy technique, acoustic wave properties of arbitrarily polarized modes can be measured with sub-wavelength resolution and high sensitivity. Surface acoustic wave fields of elementary model systems like a single scattere...
متن کاملChiral phenomena in toroidal metamaterials
We present the first observation of circular dichroism due to a combination of resonant toroidal dipole and electric quadrupole excitations in a toroidal metamaterial.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Wave Motion
سال: 2019
ISSN: 0165-2125
DOI: 10.1016/j.wavemoti.2019.01.010