A room-temperature infrared sensor sensitive enough for night-vision goggles yet light enough to mount on ordinary spectacles ...

The emergence of convenient sources of broadband light spanning the visible and near-infrared ... spectrum that can span the visible and near-infrared, typically from around 400 to 2,000 nm.

In the extreme ultraviolet (EUV; 5–100 nm) and soft-X-ray (2–5 nm) regions of the spectrum ... wavelengths of 4 nm and below. The XUUS uses high-harmonic generation (HHG) of near-infrared ...