Wiktionary
photosensitize
vb. (context transitive English) to make something photosensitive
WordNet
photosensitize
v. make (an organism or substance) sensitive to the influence of radiant energy and especially light [syn: photosensitise]
Usage examples of "photosensitize".
I suspect the weapon is also photosensitized to detonate under a high-intensity beam of light.