Polarization-resolved high-resolution Raman spectroscopy with a light-emitting diode

Miriam A. Schmidt, Johannes Kiefer

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We demonstrate the use of a light-emitting diode (LED) based experimental setup for collecting polarization-resolved Raman spectra with good spectral resolution. The combination of a commercial red LED (630nm), a 1-nm bandwidth laser-line filter, and a polarizing prism is used as a light source. Polarization-resolved spectra in dimethyl sulfoxide are recorded and compared with the corresponding laser-Raman spectra. The LED-excited spectra exhibit a resolution slightly lower than those in the laser case but still close to the resolution of the spectrometer. All relevant spectral features of dimethyl sulfoxide including the symmetric and antisymmetric stretching modes of the CSC moiety are resolved with the experimental setup providing a spectral resolution of approximately 20cm(-1). Copyright (c) 2013 John Wiley Sons, Ltd.
Original languageEnglish
Pages (from-to)1625-1627
Number of pages3
JournalJournal of Raman Spectroscopy
Volume44
Issue number11
Early online date11 Sep 2013
DOIs
Publication statusPublished - 1 Nov 2013

Keywords

  • depolarization ratio
  • LED
  • Raman
  • resolution

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