| Title: |
Two-dimensional vibrational-electronic spectroscopy with a white light probe |
| Authors: |
Masood, H. M. A.; Brunst, H.; Denninger, L.; Hinterthan, M.; Wille, G.; Neumann, C.; van Wilderen, L. J. G. W.; Bredenbeck, J. |
| Contributors: |
Deutsche Forschungsgemeinschaft; Stiftung Polytechnische Gesellschaft Frankfurt am Main |
| Source: |
Review of Scientific Instruments ; volume 97, issue 3 ; ISSN 0034-6748 1089-7623 |
| Publisher Information: |
AIP Publishing |
| Publication Year: |
2026 |
| Description: |
Two-dimensional Vibrational-Electronic (2D-VE) spectroscopy provides direct access to the couplings and correlations between vibrational and electronic transitions. We present a Fourier transform 2D-VE setup that employs compressed broadband white-light probing to resolve changes in electronic spectra induced by infrared (IR) excitation. These changes arise from vibronic couplings that are mode- and molecule-specific and can, for example, be used to disentangle congested spectra. As a demonstration, we measure a mixture of laser dyes with strongly overlapping IR spectra but clearly distinguishable dye-specific 2D-VE signatures. Though several novel advanced spectroscopies and microscopies rely on IR-induced modulations of visible spectra, they do not directly measure these effects, which can now be achieved by the present setup for a broad wavelength range from 380 to 700 nm. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1063/5.0311564 |
| DOI: |
10.1063/5.0311564/20952774/033003_1_5.0311564.pdf |
| Availability: |
https://doi.org/10.1063/5.0311564; https://pubs.aip.org/aip/rsi/article-pdf/doi/10.1063/5.0311564/20952774/033003_1_5.0311564.pdf |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.32FA217F |
| Database: |
BASE |