Laser pyrolysis offers some similarities with flame spray pyrolysis and the continuous production makes this method interesting in terms of larger production. It is based on the interaction of a powerful IR laser beam with a mixture of gaseous or liquid precursors, with one of them absorbing the laser radiation. It has been developed up to now mainly for the production of non-oxide nanoparticles (Si, SiC, Si3N4.). There is more than one way to carry out laser pyrolysis which can include photolysis, or light-initiated molecular dissociation, as well. First, precursor materials can react or decompose to form nanoparticles. Second, sensitizers can cause other materials to decompose. And finally, substances can decompose, triggering the decomposition of other substances. In any case, the reactants are subsequently quenched at a controlled time to form nanoparticles, and then the particles collected.