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URN to cite this document: urn:nbn:de:bvb:703-epub-9159-2
Title data
Jana, Sanchayeeta ; Durst, Simon ; Ludwig, Lucas ; Lippitz, Markus:
Overcoming experimental obstacles in two-dimensional spectroscopy of a single molecule.
In: The Journal of Chemical Physics.
Vol. 162
(2025)
Issue 18
.
- 184202.
ISSN 1089-7690
DOI der Verlagsversion: https://doi.org/10.1063/5.0261813
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Project information
| Project title: |
Project's official title Project's id GRK 2818: Optische Anregungen in organischen und anorganischen Halbleitern: Verstehen und Kontrollieren durch externe Stimuli 464648186 Nichtlineare Spektroskopie eines einzelnen Nanoobjekts mit Hilfe eines plasmonischen Wellenleiters 524294906 Open Access Publizieren No information |
|---|---|
| Project financing: |
Deutsche Forschungsgemeinschaft |
Related research data
Abstract
Two-dimensional electronic spectroscopy provides information on coupling and energy transfer between excited states on ultrafast timescales. Only recently, incoherent fluorescence detection has made it possible to combine this method with single-molecule optical spectroscopy to reach the ultimate limit of sensitivity. The main obstacle has been the low number of photons detected due to limited photostability. Here, we discuss the key experimental choices that allowed us to overcome these obstacles: broadband acousto-optic modulation, accurate phase-locked loops, photon-counting lock-in detection, delay stage linearization, and detector dead-time compensation. We demonstrate how the acquired photon stream data can be used to post-select detection events according to specific criteria.
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