Artificial Intelligence in Metamaterial Informatics for Sonic Frequency Mechanical Identification Tags (Adv. Funct. Mater. 10/2025)

Sonic Transponder Metamaterial Discovery In article number 2414670, Il-Kwon Oh and co-workers develop the first sonic frequency identification (SFID) transponder with the assistance of AI discovery in metamaterial informatics. The SFID transponder enables echolocation and identification in air and underwater environments, enabling instrument ownership and applications in locating missing aircraft, sunken ships, and valuable cargo.