Two-dimensional Fourier transform spectroscopy in the ultraviolet with sub-20 fs pump pulses and 250–720 nm supercontinuum probe

New Journal of Physics, 2013, 15, 085016 published on 21.08.2013
New Journal of Physics
We show that two-dimensional Fourier transform spectroscopy can be carried out in a shaper assisted collinear setup comprising fully tunable UV pulse pairs and supercontinuum probe spanning 250 - 720 nm. The potential of the setup is demonstrated on two representative molecules: pyrene and 2,2-diphenyl-5,6-benzo(2H)chromene. Well resolved cross peaks are observed and the excitation energy dependence of the relaxation processes is revealed.
TU München