Theorists propose a way to make superconducting quantum devices such as Josephson junctions and qubits, atom-by-atom, inside a silicon crystal. Such systems could combine the most promising aspects of silicon spin qubits with the flexibility of superconducting circuits.
The light-warping structures known as metamaterials have a new trick in their ever-expanding repertoire. Researchers have built a silver, glass and chromium nanostructure that can all but stop visible light cold in one direction while giving it a pass in the other. The device could someday play a role in optical information processing and in novel biosensing devices.
Researchers are looking to combat dangerous sub-dermal implsnt infections by upgrading your new hip or kneecap in a fashion appreciated since ancient times - adding gold. The result is a new antibacterial material based on gold nanoparticles.
Scientists have proposed a new type of photo-energy detector - of infrared pulsed laser light - using a nanoporous ZnO/n-Si structure that would be relatively simple and inexpensive to develop. Photodetectors are a core component in optoelectronic devices, and this new detector could have expanded applications in the future.