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This is a bit of a necropost I suppose, but I believe I have some useful stuff to add to this discussion! regarding homemade fireworks, naturally. In a nut shell, it may be better to point people towards a *relatively* safe start in the hobby as opposed to forbidding it and waiting for them to...

It does seem logical that lasers outside of optical wavelengths wouldn't really be called lasers, assuming that the L really does stand for "light"! That is, if you want to get technical. Although CO2 lasers are pretty far into the IR with something like ~10um wavelength, right? But I'm guessing...

I thought this was interesting, partly because I work for a company that is doing research for the US Department of Defense for the same sort of application. Of course we are designing the integrated device, not the diode. I was reading some of our old publications - probably more having to do...