With a surprising discovery, an international team of scientists demonstrates the feasibility of selective magnetization switching inside a microstructure by using laser light. Their findings open opportunities for very-high-density information storage media.
Scientists have recently infiltrated cesium atoms in a self-assembled opal to create a hybrid nanophotonic system. By tuning the opal's forbidden gap relative to the atomic resonance, dramatic changes are observed in reflectivity. In the most extreme case, the atomic reflection spectrum is turned upside down compared to the traditional case.
Just as the invention of nonstick pans was a boon for chefs, a new type of nanoscale surface that bacteria can't stick to holds promise for applications in the food processing, medicine and even shipping industries.
Scientists developing a prototype optical quantum hard drive have improved storage time by a factor of over 100. The team's record storage time of six hours is a major step towards a secure worldwide data encryption network based on quantum information
The quantum dots in these displays also use materials and technologies - including engineered nanoparticles and the heavy metal cadmium - that have been a magnet for health and environmental concerns. Will the dazzling pictures this technology allow blind us to new health and environmental challenges, or do their benefits outweigh the potential risks?