I think it would go better with explosives, because combustion is sort of like a bunch of small, controlled explosions.
Whoever wrote this articla at Wikipedia disagrees with you (not that I do, just sayin')
A directed-energy weapon (DEW) emits energy in an aimed direction without the means of a projectile. It transfers energy to a target for a desired effect. Some such weapons are real or in development; others are at present only science fiction.
The energy can come in various forms:
Electromagnetic radiation (typically lasers or masers).
Particles with mass (particle beam weapons).
Sound (sonic weaponry)
Heat
The energy can come in various forms:
Electromagnetic radiation (typically lasers or masers).
Particles with mass (particle beam weapons).
Sound (sonic weaponry)
Heat