Ultrabroadband Two-Dimensional Electronic Spectroscopy in the Pump–Probe Geometry Using Conventional Optics

Authors

Matthew S. Barclay, Boise State UniversityFollow
Nicholas D. Wright, Boise State University
Paul Cavanaugh, Boise State UniversityFollow
Ryan D. Pensack, Boise State UniversityFollow
Eric W. Martin, MONSTR Sense Technologies
Daniel B. Turner, Boise State UniversityFollow

Document Type

Article

Publication Date

4-15-2024

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, τ₁, necessary to obtain the excitation-frequency dimension. Spectral resolution of the probe beam provides the detection-frequency dimension, ω₃. 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, τ₂, by vibrational wave packets. The interferometer simplifies ultrabroadband 2D ES measurements and analysis.

Publication Information

Barclay, Matthew S.; Wright, Nicholas D.; Cavanaugh, Paul; Pensack, Ryan D.; Martin, Eric W.; and Turner, Daniel B.. (2024). "Ultrabroadband Two-Dimensional Electronic Spectroscopy in the Pump–Probe Geometry Using Conventional Optics". Optics Letters, 49(8), 2065-2068. https://doi.org/10.1364/OL.519387