Different from conventional materials, materials with negative Poisson's ratios expand
laterally when stretched longitudinally. Known as 'auxetic'materials, the effect means they …

Metamaterials, as artificially structured materials composed of subwavelength arrays of
resonant unit cells, can exhibit exotic properties beyond those accessible to natural …

Phononic crystals (PCs) and metamaterials (MMs) can exhibit abnormal properties, even far
beyond those found in nature, through artificial design of the topology or ordered structure of …

Optical metasurfaces with subwavelength thickness hold considerable promise for future
advances in fundamental optics and novel optical applications due to their unprecedented …

Optical tweezers employing forces produced by light underpin important manipulation tools
employed in numerous areas of applied and biological physics. Conventional optical …

We review the basic physics and applications of a special class of planar metamaterials,
often called metasurfaces, which are composed of optically thin and densely packed planar …

Metasurfaces, two-dimensional equivalents of metamaterials, are engineered surfaces
consisting of deep subwavelength features that have full control of the electromagnetic …

Photonic components with adjustable parameters, such as variable-focal-length lenses or
spectral filters, which can change functionality upon optical stimulation, could offer …

Harmonic manipulations are important for applications such as wireless communications,
radar detection and biological monitoring. A general approach to tailor the harmonics …

Metamaterials, artificial electromagnetic media that are structured on the subwavelength
scale, were initially suggested for the negative-index'superlens'. Later metamaterials …