Nonresonant background suppression in broadband vibrational sum-frequency generation spectroscopy

Alexei Lagutchev, Selezion A. Hambir, Dana D Dlott

Research output: Contribution to journalArticlepeer-review


Suppression of the nonresonant background in vibrational sum-frequency generation (SFG) in the broadband multiplex configuration is achieved using a time-asymmetric pulse, created by passing a femtosecond pulse through a Fabry-Perot étalon, to temporally discriminate between the faster nonresonant and slower resonant contributions. A mixed time and frequency domain explanation of the SFG process is presented, and spectra with high time resolutions and high degrees of nonresonant background suppression are obtained using self-assembled alkanethiolate monolayers on Au.

Original languageEnglish (US)
Pages (from-to)13645-13647
Number of pages3
JournalJournal of Physical Chemistry C
Issue number37
StatePublished - Sep 20 2007

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Energy
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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