Hacking together the cheapest possible but highest bandwidth and highest precision spectroscopic analyzer. Ultimate goal is mass production, these things usually cost an arm and a leg but this is 1000x better and cheaper.

Optically pumped laser pushed through a 50/50 split, shift one side 80MHz and put it back in the loop. Shift again 1khz and put it back in the loop. This gives us a 10THz wide spectrum with uniformly distributed peaks (at 80MHz) and creates something like an optical heterodyne.

We use a software defined radio with an optical coupler to read the resulting spectrum after passing the beam through the edge of a molecule. It's similar to how astronomers determine the chemical composition of exoplanets but we apply it to any material.

We use hydrogen cyanide for calibration, this seems to be the defacto standard.