Elemind, a startup founded by MIT researchers, has developed an electroencephalogram (EEG) headband that emits acoustic ...

3D phononic crystals find applications in acoustic cloaking, vibration isolation, and thermal insulation. Phononic crystals are closely related to the concept of metamaterials, which are artificial ...

Specific topics include sub-wavelength waveguiding and focusing, super-resolution imaging and nano-lithography beyond the diffraction limit of the light, negative refraction, and invisibility cloaking ...