As President Donald Trump received pushback for floating the idea that COVID-19 patients could receive treatment using ultraviolet light or injections of disinfectants, many people on social media ...

Ultraviolet-B (UV-B) semiconductor lasers are highly sought for medical, biotechnology, and precision manufacturing applications; however, previous UV-B laser diodes were limited to pulsed operation ...

To find food, dazzle mates, escape predators and navigate diverse terrain, birds rely on their excellent color vision. “Humans are color-blind compared to birds and many other animals,” said Mary ...

Some researchers hope a decades-old technology might get its moment and be deployed in stores, restaurants and schools. By Kenneth Chang As society tries to rebound from the coronavirus pandemic, some ...