For 10 points, identify these that amplify light by stimulated emission of radiation.
The NIF uses these in an attempt to generate fusion and one technique involving these is q-switching. An important process in their function is population inversion, and their operation involves pumping. Types include the free electron variety, and solid state ones can use ruby as a medium. They produce (*) coherent light and a simple design uses two mirrors, one partially reflective. For 10 points, identify these that amplify light by stimulated emission of radiation.
The NIF uses these in an attempt to generate fusion and one technique involving these is q-switching.
{laser} [or light {amplified} by stimulated emission of radiation before “{amplify}”]