Facile collection of two-dimensional electronic spectra using femtosecond pulse-shaping Technology

TitleFacile collection of two-dimensional electronic spectra using femtosecond pulse-shaping Technology
Publication TypeJournal Article
Year of Publication2007
AuthorsGrumstrup EM, Shim S-H, Montgomery MA, Damrauer NH, Zanni MT
Secondary TitleOptics Express
Volume15
Issue25
Pagination16681
Date Published2007
Abstract

This letter reports a straightforward means of collecting two-dimensional electronic (2D-E) spectra using optical tools common to many research groups involved in ultrafast spectroscopy and quantum control. In our method a femtosecond pulse shaper is used to generate a pair of phase stable collinear laser pulses which are then incident on a gas or liquid sample. The pulse pair is followed by an ultrashort probe pulse that is spectrally resolved. The delay between the collinear pulses is incremented using phase and amplitude shaping and a 2D-E spectrum is generated following Fourier transformation. The partially collinear beam geometry results in perfectly phased absorptive spectra without phase twist. Our approach is much simpler to implement than standard non-collinear beam geometries, which are challenging to phase stabilize and require complicated calibrations. Using pulse shaping, many new experiments are now also possible in both 2D-E spectroscopy and coherent control.

DOI10.1364/OE.15.016681
Short TitleOpt. Express