Cloaking – Many Different Varieties
I had previously blogged about Thermal Cloaking, which uses layers of aluminum and paper to create an anisotropic structure and cloak a desired object. This differs from the “traditional” type of cloaking, of light and electromagnetic waves, which make use of metamaterials or layered structures that impose a negative refractive index to make the cloaked object appear transparent.
Not as well-known, but still relevant to the field is acoustics modeling. It works similarly to electromagnetic cloaking although at the scale of acoustic wavelengths. The researcher in the Thermal Cloaking work, Sebastién Guenneau of Institut Fresnel-CNRS, has also modeled this application. So have we, and there is an example of this in our Model Gallery.
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