Two wavelength photo-initiators?

Not a chemist so I hope you'll forgive any amateur mistakes. I found an overview of 3D printing resin photo-initiators here:


<https://pubs.acs.org/doi/10.1021/acsapm.8b00165#tbl1>


All these activate when subjected to light with a compatible wavelength.


Are there photo-initiator (blends) which require two different wavelengths to be present at the same time to activate?


If so, where can I find more information about them? If not, is there a specific reason something like this can't ever be created?


