Can quantum dots emit light at intensities sufficient to disinfect a room? I always see them made and used on the nanoscale. And can a laser be wide enough so that you could make a “laser sheet” to disinfect any air that passes through it? Otherwise it seems like quantum dots are too small and lasers are too focused to work. But I am not an optics person.
Lasers can be widened with optics, like curved reflectors. Fiber could potentially distribute an intense source to multiple endpoints, although UVC would require the use of special materials. I’m not an optics specialist either. I don’t know of quantum dots in the UVC range, maybe it hasn’t been done yet. For visible wavelengths they can be pretty bright, so maybe? I don’t think these alternatives exist yet, but so many approaches seem potentially viable that I’m not sure it will take ten years.
Can quantum dots emit light at intensities sufficient to disinfect a room? I always see them made and used on the nanoscale. And can a laser be wide enough so that you could make a “laser sheet” to disinfect any air that passes through it? Otherwise it seems like quantum dots are too small and lasers are too focused to work. But I am not an optics person.
Lasers can be widened with optics, like curved reflectors. Fiber could potentially distribute an intense source to multiple endpoints, although UVC would require the use of special materials. I’m not an optics specialist either. I don’t know of quantum dots in the UVC range, maybe it hasn’t been done yet. For visible wavelengths they can be pretty bright, so maybe? I don’t think these alternatives exist yet, but so many approaches seem potentially viable that I’m not sure it will take ten years.