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Sadly, not even LEDs are truly monochromatic and typically have a ~20nm spread on either side of the peak. They also exhibit drift in wavelength peak. This is s
by lightedman 4y ago
Sadly, not even LEDs are truly monochromatic and typically have a ~20nm spread on either side of the peak. They also exhibit drift in wavelength peak. This is seen at my job, where I run the UV testing and production.
- scotty79 4y agoI don't think it needs to be monochromatic. If the longest wavelength is 222nm, other penetrate skin even less.
- jefftk 4y agoThe longest wavelength isn't 222, that's the peak wavelength. KrCl excimer lamps produce a relatively narrow spectrum as is: https://pubs.acs.org/doi/10.1021/acsphotonics.2c00041 https://pubs.acs.org/doi/10.1021/acsphotonics.2c00041 If it turns out we need it to be even narrower, we could put filters on them.