Ultrabroadband two-dimensional electronic spectroscopy in the pump–probe geometry using conventional optics

Barclay, Matthew (ORCID:0000000152799983); Wright, Nicholas (ORCID:0000000167086855); Cavanaugh, Paul (ORCID:0000000349279914); Pensack, Ryan (ORCID:0000000213021770); Martin, Eric (ORCID:0000000237073233); Turner, Daniel (ORCID:0000000231485317)

doi:10.1364/ol.519387

DOE OSTI · 2580198

Ultrabroadband two-dimensional electronic spectroscopy in the pump–probe geometry using conventional optics

Barclay, Matthew (ORCID:0000000152799983)·Wright, Nicholas (ORCID:0000000167086855)·Cavanaugh, Paul (ORCID:0000000349279914)·Pensack, Ryan (ORCID:0000000213021770)·Martin, Eric (ORCID:0000000237073233)·Turner, Daniel (ORCID:0000000231485317)

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Abstract

We report ultrabroadband two-dimensional electronic spectroscopy (2D ES) measurements obtained in the pump–probe geometry using conventional optics. A phase-stabilized Michelson interferometer provides the pump-pulse delay interval,τ 1 , necessary to obtain the excitation-frequency dimension. Spectral resolution of the probe beam provides the detection-frequency dimension,ω 3 . The interferometer incorporates active phase stabilization via a piezo stage and feedback from interference of a continuous-wave reference laser detected in quadrature. To demonstrate the method, we measured a well-characterized laser dye sample and obtained the known peak structure. The vibronic peaks are modulated as a function of the waiting time,τ 2 , by vibrational wave packets. The interferometer simplifies ultrabroadband 2D ES measurements and analysis.

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Barclay, Matthew (ORCID:0000000152799983), Wright, Nicholas (ORCID:0000000167086855), Cavanaugh, Paul (ORCID:0000000349279914), Pensack, Ryan (ORCID:0000000213021770), Martin, Eric (ORCID:0000000237073233), Turner, Daniel (ORCID:0000000231485317). 2024-01-01. Ultrabroadband two-dimensional electronic spectroscopy in the pump–probe geometry using conventional optics. https://doi.org/10.1364/ol.519387

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