tl;dr eli5: This is research into photonic (optical fiber) links and how to store several different colors (frequencies) in a vibrating material. The vibrating

tl;dr eli5: This is research into photonic (optical fiber) links and how to store several different colors (frequencies) in a vibrating material. The vibrating material is still a transmission but because it to 100,000x slower than light, it represents "storage." (In case you are confused, this research is just about the storage, and not the optical link.)