In the case of the MIT project, a 1.9 μm thulium laser produces a beam tuned to water vapor at power levels that are not harmful to your eyes. The water vapor around your ears — and there is a ...
Less common, but still valuable, is thulium's role in doping a special type of garnet, yttrium aluminium garnet or YAG. The crystal is used as the active medium in a laser with a wavelength of around ...
Decades of cutting-edge laser, optics and plasma physics research at Lawrence Livermore National Laboratory (LLNL) played a key role in the underlying ...