thats absolutely crazy you saying this, because many years ago before i knew anything about lasers I had this theory of lasers beams not actually carrying "heat" or having no actual temperature in the beam itself because of an experiment I tried on myself. I had 2 lasers, a 638nm and a 445nm. both had almost the exact same output, tested on a meter, the 638 was 538mw and the 445 had just a little over 500, I think it was 508, so 30 ish mw difference. I was trying to figure out how much heat they were producing (before I found out they produced no heat) and I fired them both onto my hand, well the blue one immediately burned me and I ripped my hand away within a sec. well the Red one didnt burn at all, just a small tingle. i was shocked! so that was when i figured out that they had no actual heat in the beam, I honestly thought that logic told me that they were the same power they should produce the same amount of heat in the beam. i knew they were on the oppisite side of the spectrum and the energy density was much higher the lower you go. Yeah i guess at that time i didnt know that the energy in the beam itself causes things to heat up and my hand wasnt absorbing the red light like the blue was.
Honestly, I knew it wasn't the laser that detected temperature. Though I was not aware of the spectrum being the decisive fact on its heating factor. So ideally you want something in the ultraviolet as opposed to the IR spectrum. Makes sense when you're talking about wavelengths. I should have worded my question better. I was just wondering if it was possible to measure the ambient temperature with a high-power laser. I want to program an SoC to heat up vapor liquids to make a vape merely as a proof of concept I would NEVER advocate using it. I just want to see if it can be done. The modding part of vapor cigs has pretty much died so I'm just having fun.
