Surface-Enhanced Femtosecond Stimulated Raman Spectroscopy at 1 MHz Repetition Rates

Lauren E. Buchanan, Natalie L. Gruenke, Michael O. McAnally, Bogdan Negru, Hannah E. Mayhew, Vartkess A. Apkarian, George C. Schatz, Richard P. Van Duyne

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Surface-enhanced femtosecond stimulated Raman spectroscopy (SE-FSRS) is an ultrafast Raman technique that combines the sensitivity of surface-enhanced Raman scattering with the temporal resolution of femtosecond stimulated Raman spectroscopy (FSRS). Here, we present the first successful implementation of SE-FSRS using a 1 MHz amplified femtosecond laser system. We compare SE-FSRS and FSRS spectra measured at 1 MHz and 100 kHz using both equal pump average powers and equal pump energies to demonstrate that higher repetition rates allow spectra with higher signal-to-noise ratios to be obtained at lower pulse energies, a significant advance in the implementation of SE-FSRS. The ability to use lower pulse energies significantly mitigates sample damage that results from plasmonic enhancement of high-energy ultrafast pulses. As a result of the improvements to SE-FSRS developed in this Letter, we believe that SE-FSRS is now poised to become a powerful tool for studying the dynamics of plasmonic materials and adsorbates thereon.

Original languageEnglish
Pages (from-to)4629-4634
Number of pages6
JournalJournal of Physical Chemistry Letters
Volume7
Issue number22
DOIs
Publication statusPublished - Nov 17 2016

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Raman spectroscopy
repetition
pulses
Pumps
pumps
energy
Adsorbates
Ultrashort pulses
temporal resolution
Raman scattering
Signal to noise ratio
signal to noise ratios
Raman spectra
damage
augmentation
lasers

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Buchanan, L. E., Gruenke, N. L., McAnally, M. O., Negru, B., Mayhew, H. E., Apkarian, V. A., ... Van Duyne, R. P. (2016). Surface-Enhanced Femtosecond Stimulated Raman Spectroscopy at 1 MHz Repetition Rates. Journal of Physical Chemistry Letters, 7(22), 4629-4634. https://doi.org/10.1021/acs.jpclett.6b02175

Surface-Enhanced Femtosecond Stimulated Raman Spectroscopy at 1 MHz Repetition Rates. / Buchanan, Lauren E.; Gruenke, Natalie L.; McAnally, Michael O.; Negru, Bogdan; Mayhew, Hannah E.; Apkarian, Vartkess A.; Schatz, George C.; Van Duyne, Richard P.

In: Journal of Physical Chemistry Letters, Vol. 7, No. 22, 17.11.2016, p. 4629-4634.

Research output: Contribution to journalArticle

Buchanan, LE, Gruenke, NL, McAnally, MO, Negru, B, Mayhew, HE, Apkarian, VA, Schatz, GC & Van Duyne, RP 2016, 'Surface-Enhanced Femtosecond Stimulated Raman Spectroscopy at 1 MHz Repetition Rates', Journal of Physical Chemistry Letters, vol. 7, no. 22, pp. 4629-4634. https://doi.org/10.1021/acs.jpclett.6b02175
Buchanan LE, Gruenke NL, McAnally MO, Negru B, Mayhew HE, Apkarian VA et al. Surface-Enhanced Femtosecond Stimulated Raman Spectroscopy at 1 MHz Repetition Rates. Journal of Physical Chemistry Letters. 2016 Nov 17;7(22):4629-4634. https://doi.org/10.1021/acs.jpclett.6b02175
Buchanan, Lauren E. ; Gruenke, Natalie L. ; McAnally, Michael O. ; Negru, Bogdan ; Mayhew, Hannah E. ; Apkarian, Vartkess A. ; Schatz, George C. ; Van Duyne, Richard P. / Surface-Enhanced Femtosecond Stimulated Raman Spectroscopy at 1 MHz Repetition Rates. In: Journal of Physical Chemistry Letters. 2016 ; Vol. 7, No. 22. pp. 4629-4634.
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