Help with recording image of record groove needed

I'm hoping that some of the scientifically savvy members of this forum might be of help resolving a professional dilemma. I work with a collaborative workshop that produces two and three dimensional art editions for artists who are invited to work with us. One artist we have a relationship with works with sound related projects and is exploring various ways to use the surface of a vinyl record as source material. One proposed project involves producing a video of a stylus tracing it's path through a record groove. Finding imaging/recording technology that works on this scale has proven difficult. Our workshop is part of a research university and we've exhausted most of our contacts with various science, engineering, and medical units of the college. Imaging explorations began with static images using scanning electron microscopes and atomic force microscopy. Once the project moved into video though, things have become difficult. We're trying to find a video recording technology that can be mounted underneath and behind the phono cartridge and create closely focused images of the record surface. Any ideas? If you can help, feel free to privately email me or answer in this forum. Thanks in advance.