Volume 3 Issue 12, December 2018

Sound waves can be manipulated using structurally designed 2D materials of subwavelength thickness. This emerging field, namely, acoustic metasurfaces, is driven by the desire to control acoustic wave propagation using compact devices.

Inorganic semiconductor devices enable the formation of functional interfaces with cells and tissues to detect or provide physical stimuli. In this Review, inorganic semiconductor materials are discussed for electronic and optoelectronic sensing, optoelectronic and photothermal stimulation and photoluminescent in vivo imaging.

Holographic duality establishes a connection between quantum gravity and strongly correlated many-body systems, providing a unique opportunity to study quantum black holes in the laboratory. In this Review, Sachdev–Ye–Kitaev models, which illustrate this duality, are discussed, along with their potential realization in ultracold gases, graphene, semiconducting nanowires and 3D topological insulators.