Read article: CO2 laser enables long-range detection of radioactive material
Remote detection of radioactive material could play an important role in nuclear disaster response and nuclear security
Read article: Optical sensors could improve the comfort of indoor temperatures
Integrating low-cost infrared sensors into thermostats could increase occupants’ comfort while optimizing energy use
Read article: Flexible tactile sensor reads braille in real time
A tactile sensor based on an optical fibre ring resonator helps blind or partially sighted people interact seamlessly with braille-based devices
Read article: Four-wave mixing could boost optical communications in space
Nonlinear effect amplifies weak signals
Read article: AI-assisted photonic detector identifies fake semiconductor chips
New technique could reduce risks of unwanted surveillance, chip failure and theft, say researchers
Read article: Ask me anything: Andrew Weld: ‘You’re probably going to be working for over 40 years, so make sure you enjoy what you do’
Andrew Weld is the head of research and development at QLM technologies
Read article: Cosmic-ray physics: detector advances open up the ultrahigh-energy frontier
Gearing up in the search for ultrahigh-energy cosmic rays
Read article: Shrimp-inspired nanoclusters enable multifunctional artificial vision systems
Researchers develop nanocluster-based photoreceptors that combine colour vision, photoadaptation and circular polarization vision into a single system
Read article: Wearable optical device could detect postpartum haemorrhage
New laser speckle contrast imaging sensor has proved successful in a swine model and is now being tested on healthy volunteers
Read article: Metalens-based spectrometer fits on a chip
Compact new device could have applications in information security and processing
