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

Journal Article · 01 January 2024 · Optics Letters

DOI: https://doi.org/10.1364/ol.519387 · OSTI ID:2580198

Barclay, Matthew ; Wright, Nicholas ; Cavanaugh, Paul ; Pensack, Ryan ; Martin, Eric ; Turner, Daniel

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.

• Research Organization: Boise State Univ., ID (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: SC0020089
• OSTI ID: 2580198
• Journal Information: Optics Letters, Journal Name: Optics Letters Journal Issue: 8 Vol. 49; ISSN 0146-9592; ISSN OPLEDP
• Publisher: Optical Society of America (OSA)Copyright Statement
• Country of Publication: United States
• Language: EN