Early blackened metallic surfaces produced by the distillation of metals at relatively high pressures 1, as well as recent blackening of metals 2,3 and silicon 4 caused by intense laser irradiation, ...

It might be small, but it’s a big feat. A lens has been built that is thinner than the waves of light it focuses. Such lenses, made from light-warping metamaterials, might someday replace the heavier ...

1. The reflection of light from the surfaces of many kinds of leaves has been measured by means of a direct reading spectrophotometer, the measurements being made normal (that is, at an angle of 90⚬ ...

TAMPA, Fla. — The Light Adjustable Lens optimizes postoperative results after cataract surgery, a speaker said at the Telling It Like It Is meeting. The Light Adjustable Lens optimizes postoperative ...