Baumberg's research is in nanotechnology,[2] including nanophotonics, plasmonics, metamaterials and optical microcavities. He is interested in the development of nanostructured optical materials that undergo unusual interactions with light, and his research has various commercial applications.[3][4] His early work led to the development of a number of pioneering experimental techniques.[2]
Baumberg appeared in the documentary The Secret Life of Materials in 2015 and a Horizon documentary about Schön scandal first broadcast in 2004.[5][6]