Many experiments seem to have been done where the experimental setup consists of an extremely short, but intense laser pulse, impinging on e.g. deuterated plastic of some sort or some "jet" of nano droplets with some sort of deuterated chemical. Typically a Coulomb explosion happens and then fusion reactions are detected also.
Is the logic behind this approximately as follows; the strong "radiation field" of the laser light strips away the (outer) electrons on the target, which is then left with a large net positive charge and is also at the same time ionized. Then the whole shebang explodes simply because like charges repel. The deuterons, or generally fuel nuclei, get so high velocities that when they collide with one another or a target, nuclear fusion is induced.