Issue 15, 2015

Ultrafast surface-enhanced Raman spectroscopy


Ultrafast surface-enhanced Raman spectroscopy (SERS) with pico- and femtosecond time resolution has the ability to elucidate the mechanisms by which plasmons mediate chemical reactions. Here we review three important technological advances in these new methodologies, and discuss their prospects for applications in areas including plasmon-induced chemistry and sensing at very low limits of detection. Surface enhancement, arising from plasmonic materials, has been successfully incorporated with stimulated Raman techniques such as femtosecond stimulated Raman spectroscopy (FSRS) and coherent anti-Stokes Raman spectroscopy (CARS). These techniques are capable of time-resolved measurement on the femtosecond and picosecond time scale and can be used to follow the dynamics of molecules reacting near plasmonic surfaces. We discuss the potential application of ultrafast SERS techniques to probe plasmon-mediated processes, such as H2 dissociation and solar steam production. Additionally, we discuss the possibilities for high sensitivity SERS sensing using these stimulated Raman spectroscopies.

Graphical abstract: Ultrafast surface-enhanced Raman spectroscopy

Article information

Article type
01 May 2015
21 May 2015
First published
28 May 2015

Analyst, 2015,140, 4922-4931

Author version available

Ultrafast surface-enhanced Raman spectroscopy

E. L. Keller, N. C. Brandt, A. A. Cassabaum and R. R. Frontiera, Analyst, 2015, 140, 4922 DOI: 10.1039/C5AN00869G

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