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

Arijit K. De | Zendy; Daniele M. Monahan | Zendy; Jahan M. Dawlaty | Zendy; Graham R. Fleming | Zendy

Open Access

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

Author(s) -

Arijit K. De,

Daniele M. Monahan,

Jahan M. Dawlaty,

Graham R. Fleming

Publication year - 2014

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.4874697

Subject(s) - grating , confocal , optics , spectroscopy , phase (matter) , fluorescence , phaser , fluorescence spectroscopy , materials science , physics , quantum mechanics

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."

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