LumiLattice
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

AR glasses carry the picture through a thin, clear layer called a waveguide, and the material needs a high refractive index to bend light and a wide band gap to stay clear. Few known materials have both, so LumiLattice helps researchers look for new ones. You pick a known crystal and swap some of its atoms, by hand or with Meta's Muse Spark as a research agent. The app builds the structure in 3D, checks it, scores it against your goal, and shows the source of every value. Muse Spark explains the result and suggests the next test, and you decide whether to accept, revise, or reject each candidate.