New health monitors are flexible, transparent and graphene enabled

New technological devices are prioritizing non-invasive tracking of vital signs not only for fitness monitoring, but also for the prevention of common health problems such as heart failure, hypertension, and stress related complications, among others. Wearables based on optical detection…

Terahertz waves reveal hidden processes in ultrafast artificial photosynthesis

A team of researchers from Osaka University, in cooperation with Tokyo Institute of Technology, directly observed charge transfer and intermolecular interactions in artificial photosynthesis that occurs on a picosecond (ps) scale (10 -12 ). With time-resolved attenuated total reflection (TR-ATR)…

JILA’s novel atomic clock design offers ‘tweezer’ control

JILA physicists have demonstrated a novel atomic clock design that combines near-continuous operation with strong signals and high stability, features not previously found together in a single type of next-generation atomic clock. The new clock, which uses laser “tweezers” to…

Researchers produce synthetic Hall Effect to achieve one-way radio transmission

Researchers at the University of Illinois at Urbana-Champaign have replicated one of the most well-known electromagnetic effects in physics, the Hall Effect, using radio waves (photons) instead of electric current (electrons). Their technique could be used to create advanced communication…

A chameleon-inspired smart skin changes color in the sun

Some creatures, such as chameleons and neon tetra fish, can alter their colors to camouflage themselves, attract a mate or intimidate predators. Scientists have tried to replicate these abilities to make artificial “smart skins,” but so far the materials haven’t…

Making and controlling crystals of light

Optical microresonators convert laser light into ultrashort pulses travelling around the resonator’s circumference. These pulses, called “dissipative Kerr solitons”, can propagate in the microresonator maintaining their shape. When solitons exit the microresonator, the output light takes the form of a…

NIST team shows atoms can receive common communications signals

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated a new type of sensor that uses atoms to receive commonly used communications signals. This atom-based receiver has the potential to be smaller and work better in noisy…

NUS researchers discover unusual ‘quasiparticle’ in common 2D material

The new quasiparticle, named ‘polaronic trion’, enables significant tunability in the optoelectronic