Quote Originally Posted by avandesande View Post
Laser dyes are a little easier to get and have similar functional groups as photosensitizing dyes but tend to be pretty expensive.
Caution: if you're buying laser dyes without experience of using them, please study the material data sheet and any manufacturer safety recommendations. Many of them are poisonous, carcinogenic, or both. We don't let PhD students handle them without special safety training over and above the usual laser safety course.