High intensity plasmon enhanced photoacoustic generation from polymeric absorber with 3D plasmonic nanostructures

Abstract

Photoacoustic effect has been emerging as the ultrasound generation mechanism to overcome frequency limits of ultrasound generation from piezoelectric material. This work presents the effect of the plasmonic nanostructures in photoacoustic generation. The plasmonic nanoparticles are implemented to enhance the photoacoustic generation in polymeric optical absorber. The plasmonic structures are fabricated in three dimensional formation to give volumetric electromagnetic field enhancement.