Pulse shapes of nanosecond photoacoustic signals in liquids detected by piezoelectric foil

Abstract
A nonringing detection system based on 28‐μm‐thick piezoelectric, poly(vinylidene difluoride) foil has been constructed for studying photoacoustic signals in liquids. Excellent agreement between theoretical and experimental photoacoustic pulse shapes has been observed. This system is well suited for monitoring radiationless relaxation processes in solutions on a nanosecond time scale.