For millennia, humans had one obvious and reliable source of light – the Sun – and we knew the Sun was essential for our survival. Early religions were also often tied up with healing. Sick people ...

Experiments reveal a new path to extreme light intensities used in combat lasers, nuclear fusion, and studies probing the ...

Perovskite crystals can dramatically and reversibly change shape when hit with light, a behavior not seen in conventional semiconductors. This effect, called photostriction, can be finely tuned ...