Fig. 8: Plasmon-enhanced photoacoustic effects.

a Schematic illustrating the photoacoustic effect70. Reproduced with permission70. Copyright 2020 Springer Nature Limited. b Plasmonic enhancement of the photoacoustic effect72. Reproduced with permission72. Copyright 2020 American Chemical Society. c Photoacoustic images enhanced by plasmons with different configurations73. Reproduced with permission73. Copyright 2015 American Chemical Society.