At 405nm, this violet laser pointer emits a beam that is very close to the ultraviolet range. While beautiful and reminiscent of a twilight glow or old fashioned ditto ink, the beam of the 405nm violet laser pointer is less visible than either red or green because it is so close to the UV range which leaves the realm of visible light.
The amazing super power of the 405nm violet laser pointer is that, because of its proximity to the ultraviolet range, it can be used to teach and demonstrate fluorescence or perform microscopy. Truly a unique and enticing piece of science equipment for all kinds of light science experiments and light science demonstrations. Here is our favorite fluorescence experiment for you to try!