Two-dimensional fluorescence-detected coherent spectroscopy with absolute phasing by confocal imaging of a dynamic grating and 27-step phase-cycling

Journal Article · Wed May 21 00:00:00 EDT 2014 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4874697· OSTI ID:22304423

Monahan, Daniele; Dawlaty, Jahan M. ^[1]

---

1. Department of Chemistry, University of California at Berkeley, Berkeley, California 94702 (United States)

We present a novel experimental scheme for two-dimensional fluorescence-detected coherent spectroscopy (2D-FDCS) using a non-collinear beam geometry with the aid of “confocal imaging” of dynamic (population) grating and 27-step phase-cycling to extract the signal. This arrangement obviates the need for distinct experimental designs for previously developed transmission detected non-collinear two-dimensional coherent spectroscopy (2D-CS) and collinear 2D-FDCS. We also describe a novel method for absolute phasing of the 2D spectrum. We apply this method to record 2D spectra of a fluorescent dye in solution at room temperature and observe “spectral diffusion.”.

• OSTI ID: 22304423
• Journal Information: Journal of Chemical Physics, Vol. 140, Issue 19; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DIFFUSION
FLUORESCENCE
SOLUTIONS
SPECTRA
SPECTROSCOPY
TWO-DIMENSIONAL CALCULATIONS