Designing, fabricating, and imaging Raman hot spots Academic Article uri icon

Overview

MeSH Major

  • Gold
  • Hot Temperature
  • Nanotechnology
  • Spectrum Analysis, Raman

abstract

  • We have developed a probe of the electromagnetic mechanism of surface-enhanced Raman scattering via Au nanodisk arrays generated by using on-wire lithography. In this approach, disk thickness and interparticle gap are precisely controlled from 5 nm to many micrometers. Confocal Raman microscopy demonstrates that disk thickness and gap play a crucial role in determining surface-enhanced Raman scattering intensities. Theoretical calculations also demonstrate that these results are consistent with the electromagnetic mechanism, including the surprising result that the largest enhancement does not occur for the smallest gaps.

publication date

  • September 5, 2006

Research

keywords

  • Academic Article

Identity

Language

  • eng

PubMed Central ID

  • PMC1569158

Digital Object Identifier (DOI)

  • 10.1073/pnas.0605889103

PubMed ID

  • 16938832

Additional Document Info

start page

  • 13300

end page

  • 3

volume

  • 103

number

  • 36