Nano-raman spectroscopy is reaching semiconductors

R. D. Hartschuh, N. Lee, A. Kisliuk, J. F. Maguire, M. Green, M. D. Foster, A. P. Sokolov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

We have demonstrated that scanning nano-Raman spectroscopy (SNRS), also known as tip enhanced Raman spectroscopy (TERS), with side illumination optics can be effectively used for analysis of silicon-based structures at the nanoscale. Despite the disadvantages of side illumination optics, such as difficulties in optical alignment and shadowing by the tip, it has the critical advantage that it may be used for the analysis of non-transparent samples. A key criterion for making SNRS effective for imaging Si samples is the optimization of the contrast between near-field and far-field (background) Raman signals, which improves by an order of magnitude by optimizing the incident and scattering polarization scheme. The resulting nano-Raman images of semiconducting structures yield a spatial resolution ∼20nm.

Original languageEnglish
Title of host publicationCHARACTERIZATION AND METROLOGY FOR NANOELECTRONICS
Subtitle of host publication2007 International Conference on Frontiers of Characterization and Metrology
Pages549-552
Number of pages4
DOIs
StatePublished - 2007
Externally publishedYes
EventCHARACTERIZATION AND METROLOGY FOR NANOELECTRONICS: 2007 International Conference on Frontiers of Characterization and Metrology - Gaithersburg, MD, United States
Duration: Mar 27 2007Mar 29 2007

Publication series

NameAIP Conference Proceedings
Volume931
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceCHARACTERIZATION AND METROLOGY FOR NANOELECTRONICS: 2007 International Conference on Frontiers of Characterization and Metrology
Country/TerritoryUnited States
CityGaithersburg, MD
Period03/27/0703/29/07

Keywords

  • Apertureless near-field optics
  • Plasmon resonance
  • Scanning nano-Raman spectroscopy
  • Scanning probe microscopy
  • Strained silicon
  • Tip-enhanced Raman

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