Hydrogen fluoride laser

This wavelength is absorbed by the atmosphere, effectively attenuating the beam and reducing its reach, unless used in a vacuum environment.

This makes the deuterium fluoride laser usable for terrestrial operations.

[2] The deuterium fluoride laser constructionally resembles a rocket engine.

The excited molecules then undergo stimulated emission in the optical resonator region of the laser.

[4] An Argentine-American physicist and accused spy, Leonardo Mascheroni, has proposed the idea of using hydrogen fluoride lasers to produce nuclear fusion.