In this Optics Letters article, Gaynor and co-authors use state-of-the-art two-dimensional spectroscopy to perform 2D EV. The difficulties inherent to both electronic (phasing) and vibrational spectroscopy (broad spectra and low detectivity) and their combination (complicated phase matching geometry) are solved with brio in this work.
The 2D electronic excitation is realized with a pulse shaper, while the infrared probe has a huge bandwidth (BBIR) covering the most interesting vibrational modes of chemical compounds. Besides the complexity of the experimental scheme, the works leads to high quality spectra.
This type of spectroscopy will raise the interest of people willing to understand the vibrational modes involved in chemical reactions and will lead to a better understanding of ultrafast chemical reactions.
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