Enhancing laser-based ultrasound for non-destructive testing

摘要

Ateam of researchers has developed a non-contact laser-based method for generating ultrasonic waves for non-destructive testing (NDT) and evaluation applications. The technique, described in Applied Physics Letters in September, uses a patch consisting of candle soot and polydimethylsiloxane to amplify the signal of a photoacoustic laser source.