Transmission-type plasmonic sensor for surface-enhanced Raman spectroscopy

Masahiro Yanagisawa*, Mikiko Saito, Masahiro Kunimoto, Takayuki Homma

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

We present a novel optical device for the analysis of chemical surface properties utilizing surface-enhanced Raman scattering. The device, a transmission-type plasmonic sensor (TPS), offers the advantages of high sensitivity, nondestructive sample characterization, simple setup, and low-cost fabrication. The TPS is composed of Ag nanoparticles (NPs) deposited on a convex quartz glass substrate. The enhanced Raman spectrum is acquired by focusing a laser beam perpendicular to the sample surface through the substrate. The laser beam generates plasmon polarization in droplet-shaped Ag NPs at the sensor/sample interface. Our results indicate the potential of the device as a versatile surface-analytical tool.

Original languageEnglish
Article number122002
JournalApplied Physics Express
Volume9
Issue number12
DOIs
Publication statusPublished - 2016 Dec

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy

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