Using an optoelectronic transistor as the tetrachromatic sensor, the system can simultaneously process spectral, spatial, and ...

If a major disaster like Fukushima or Chornobyl ever happens again, the world would know almost straight away, thanks to an array of government and DIY radiation-monitoring programs running globally.

Researchers at Lawrence Livermore National Laboratory (LLNL) have optimized and 3D-printed helix structures as optical ...