Surface-enhanced femtosecond stimulated Raman spectroscopy

Renee R. Frontiera, Anne Isabelle Henry, Natalie L. Gruenke, Richard P. Van Duyne

Research output: Contribution to journalArticle

106 Scopus citations

Abstract

Surface-enhanced Raman spectroscopy (SERS) and femtosecond stimulated Raman spectroscopy (FSRS) have revolutionized the Raman spectroscopy field. SERS provides spectroscopic detection of single molecules, and FSRS enables the acquisition of Raman spectra on the ultrafast time scale of molecular motion. Here, we present the first successful combination of these two techniques, demonstrating surface-enhanced femtosecond stimulated Raman spectroscopy (SE-FSRS) using gold nanoantennas with embedded reporter molecules. Using a picosecond Raman and femtosecond probe pulse, the time- and ensemble-averaged enhancement factor is estimated to be in the range of 104-10 6. We report the line shapes, power dependence, and magnitude of the SE-FSRS signal and discuss contributions to sample degradation on the minute time scale. With these first successful proof-of-principle experiments, time-resolved SE-FSRS techniques can now be rationally attempted with the goals of investigating the dynamics of plasmonic materials as well as examining the contributions of environmental heterogeneities by probing more homogeneous molecular subsets.

Original languageEnglish (US)
Pages (from-to)1199-1203
Number of pages5
JournalJournal of Physical Chemistry Letters
Volume2
Issue number10
DOIs
StatePublished - May 19 2011

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Surface-enhanced femtosecond stimulated Raman spectroscopy'. Together they form a unique fingerprint.

  • Cite this

    Frontiera, R. R., Henry, A. I., Gruenke, N. L., & Van Duyne, R. P. (2011). Surface-enhanced femtosecond stimulated Raman spectroscopy. Journal of Physical Chemistry Letters, 2(10), 1199-1203. https://doi.org/10.1021/jz200498z