I don’t really have a solution but at least a direction for further research/posts:
There’s a lighting channels feature for making certain lights only light certain surfaces, you could probably see if you can make/modify a camera that only sees certain lighting channels or make some kind of special render buffer for it - I have no clue how to do that but that’s a start.
I don’t think the engine supports anything outside of the visible spectrum. Your implementation will probably have to use different layers of light and some post processing stuff to make it look like UV/infrared capture.