It is a military sci-fi story where they use technologies that are expensive today because they already became common place. For example, laser-induced-graphene supercapacitors, carbon nanotube artificial muscles etc.
I was thinking on using these LIG (laser induced graphene) supercapacitors to power solid state lasers, such as synthetic ruby rod lasers because they seem pretty simple and straight forward (at least for me). But if you have better solid state lasers in mind, I wouldn't complain.
You don't need to worry about the supercapacitors, batteries or whatever to answer the question.
I was thinking for this solid state ruby laser to be used by the 2 meter tall carbon nanotube artificial muscles small mechs from the infantry, or an armored vehicle. But again, not essential for the question.
- The Solid State Ruby Laser:
As I could see, the solid state ruby lasers just need a flashtube to work (and other details aswell).
So, the idea would be to put one or more rods surrouned by a lot of medium lamp-like flashtubes inside a chamber, so they could emit more intense light without the risk of exploding. But of course, it could depend on how much energy the ruby rod would be able to take before simply melting from the amount of energy.
I was thinking of a meter long ruby rod with a diameter of 5 cm surrounded by 8 lines consisting of 21 flashtubes (totalling 168 flashtubes), every flash tube would have a diameter of 4.5 cm inside a reflective chamber.
- The Question:
I think it would be easier to calculate using materials that already exist, such as conventional body armor or just meaty bodies from animals (or humans).
How much energy should these flashtubes receive to emit a pulsed laser strong enough to cause a serious enough damage equivalent to kill a human at maximum distance of 300 yards in less than a second? (using lenses to focus the beam, if you so decide to use them on your answer)
("in less than a second" because even a normal engraver laser could kill a human... If you gave them burns all through their body over a couple of hours)