Laser technology: The Turbulence and the Comb
Thursday, June 18, 2020 - 11:30
in Physics & Chemistry
While the light of an ordinary laser only has one single, well-defined wavelength, a so-called ''frequency comb'' consists of different light frequencies, which are precisely arranged at regular distances, much like the teeth of a comb. Such frequency combs are difficult to generate. Now, researchers have succeeded in producing frequency combs using simple circular quantum cascade lasers - a result that seemed to contradict conventional laser theories completely.