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Replying to myself - based on sanitation guidelines, you’re going to kill at least 90% of bacteria if you hit a particular square centimeter of material with 8mw of 270nm light for 1 second. For giggles and because this is LPF, let’s say we want to get 12mw per cm^2. With a laser beam this kind...

Well not for sterilizing coronavirus, but yeah you’re on the right track here. HID lamps actually create an arc between tungsten electrodes, creating a plasma in the noble gas environment that is deliberately spiked with metals. The plasma itself can emit UV, but most HID lamps have metals...

Hey all, just wanted to get some feedback from you fine folks about what I should add to my collection next, after these difficult times pass. I currently have 2 445-455 lasers in the 1.6-2.7w range, so in that bracket I’m pretty good. I’m sort of debating between three options: DIY a 7W blue...

This is really cool, I’m an IRL virologist so it’s fun having a thread I can contribute to! You’re correct about the water gradient driving dehydration, but in the case of viruses, no they don’t have the ability to “sporulate” - viruses rely on their hosts, outside of a host cell they’re a...

You also have to look at the absorbance characteristics of what you’re trying to burn. If the wavelength isn’t absorbed by the material, a lot of the power is going to be reflected or transmitted rather than converted to heat. Most likely the laser isn’t outputting as much power as it claims to...