Femtosecond stimulated Raman spectroscopy

R. R. Frontiera, R. A. Mathies

Research output: Contribution to journalArticlepeer-review

71 Scopus citations

Abstract

Advances in the field of Femtosecond Stimulated Raman Spectroscopy (FSRS), a new time-resolved structural technique that provides complete vibrational spectra on the ultrafast timescale, are reviewed. When coupled with a femtosecond optical trigger, the time evolution of a reacting species can be monitored with unprecedented <25 femtosecond temporal and 5 cm-1 spectral resolution. New technological and theoretical advances including the development of tunable FSRS and a background-free FSRS format are discussed. The most recent experimental studies focus on ultrafast reaction dynamics in electronically excited states: isomerization in cyanobacterial phytochrome, ultrafast spin flipping in a solar cell sensitizer, and excited state proton transfer in green fluorescent protein. The use of FSRS to directly map multidimensional reactive potential energy surfaces and to probe the mechanism of reactive internal conversion is prospectively discussed.Advances in the field of Femtosecond Stimulated Raman Spectroscopy (FSRS), a new time-resolved structural technique that provides complete vibrational spectra on the ultrafast timescale, are reviewed. New technological and theoretical advances including the development of tunable FSRS and a background-free FSRS format are discussed. The most recent experimental studies focus on ultrafast reaction dynamics in electronically excited states: isomerization in cyanobacterial phytochrome, ultrafast spin flipping in a solar cell sensitizer, and excited state proton transfer in green fluorescent protein.

Original languageEnglish (US)
Pages (from-to)102-113
Number of pages12
JournalLaser and Photonics Reviews
Volume5
Issue number1
DOIs
StatePublished - Jan 1 2011

Keywords

  • Charge (electron
  • Coherent nonlinear optical spectroscopy
  • Femtosecond probing of biological molecules
  • Isomerization and rearrangement
  • Proton) transfer in biological systems
  • Stimulated Raman scattering; CARS
  • Ultrafast dynamics; charge transfer.

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