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Title: Two-dimensional electronic spectroscopy based on conventional optics and fast dual chopper data acquisition

We report an improved experimental scheme for two-dimensional electronic spectroscopy (2D-ES) based solely on conventional optical components and fast data acquisition. This is accomplished by working with two choppers synchronized to a 10 kHz repetition rate amplified laser system. We demonstrate how scattering and pump-probe contributions can be removed during 2D measurements and how the pump probe and local oscillator spectra can be generated and saved simultaneously with each population time measurement. As an example the 2D-ES spectra for cresyl violet were obtained. The resulting 2D spectra show a significant oscillating signal during population evolution time which can be assigned to an intramolecular vibrational mode.
Authors:
; ;  [1] ;  [1] ;  [2]
  1. School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ (United Kingdom)
  2. (Brazil)
Publication Date:
OSTI Identifier:
22308999
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BEAM PULSERS; DATA ACQUISITION; ELECTRON SPECTROSCOPY; KHZ RANGE; LASERS; OPTICAL PUMPING; OPTICS; OSCILLATORS; PROBES; SCATTERING; SPECTRA; TIME MEASUREMENT