Issue 2, 2016

Plasmon enhanced photoacoustic generation from volumetric electromagnetic hotspots

Abstract

This work reports plasmon enhanced photoacoustic generation by using a three dimensional plasmonic absorber. The 3D plasmonic absorber comprises a thin polymer film on glass nanopillar arrays with nanogap-rich silver nanoislands. The 3D plasmonic absorber clearly shows 24.6 times higher enhancement of photoacoustic signals at an excitation wavelength of 630 nm than a simple polymeric absorber. The photoacoustic enhancement results from the volumetric electromagnetic field enhancement on a light-absorbing polymer through 3D plasmonic nanostructures. This novel photoacoustic absorber provides a new direction for highly efficient ultrasonic generation.

Graphical abstract: Plasmon enhanced photoacoustic generation from volumetric electromagnetic hotspots

Supplementary files

Article information

Article type
Communication
Submitted
14 Aug 2015
Accepted
24 Nov 2015
First published
27 Nov 2015

Nanoscale, 2016,8, 757-761

Plasmon enhanced photoacoustic generation from volumetric electromagnetic hotspots

S. Park, S. Yang, M. Ahn, Y. Oh, Y. T. Kim and K. Jeong, Nanoscale, 2016, 8, 757 DOI: 10.1039/C5NR05505A

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