Webcams offer a low-cost way to tune lasers for serious science
Wednesday, December 5, 2012 - 00:00
in Physics & Chemistry
Using a handful of inexpensive components -- including an off-the-shelf computer webcam and a small diffraction grating, a device for splitting and diffracting light into several beams -- researchers have built a diffraction spectrometer that can tune lasers with better than one part-per-million accuracy.