THz meta-foil – a platform for practical applications of metamaterials

Functional multi-band THz meta-foils

“…, who did not consider meander structures for their obvious lack of strong resonators. This structural difference was discussed by Moser et al 25 . to entail a 3000fold higher resonance peak in the shifted strings.…”

“…THz meta-foils, proposed by Moser et al , are a new three-dimensional left-handed metamaterial, which are based on the interconnected ‘S-string’ architecture 22 23 24 25 26 . A self-supported, locally stiff, globally flexible space-grid is formed by the upright S-string architecture with the distinctive feature of metallic transverse interconnects.…”

Invisibility cloaks from forward design to inverse design

“…Metamaterials [19,20] can be realized by a collection of artificial "atoms" whose size and spacing are much smaller than the electromagnetic wavelength. These subwavelength periodic elements play similar roles as atoms or molecules in natural homogenous medium and a collection of these artificial elements give a macroscopic electromagnetic response characterized by unusual properties [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. Therefore, metamaterials can be used in lots of novel designs, including invisibility cloaks [41].…”

Perfect absorbers on curved surfaces and their potential applications

“…Alternatively, in other spectral domains, e.g. at THz frequencies, it is reasonable to fabricate the relevant structures directly as flexible films from where they can be deposited on arbitrary surfaces [19,20]. Such techniques might equally provide a path to make structured surfaces available on cylinders or even spheres.…”