Sammanfattning

Advances in ultrafast spectroscopy can provide access to dynamics involving nontrivial quantum correlations and their evolutions. In coherent 2D spectroscopy, the oscillatory time dependence of a signal is a signature of such quantum dynamics. Here, we study such beating signals in electronic coherent 2D spectroscopy of CdSe quantum dots (CdSe QDs) at 77 K. The beating signals are analyzed in terms of their positive and negative Fourier components. We conclude that the beatings originate from coherent LO-phonons of CdSe QDs. No evidence for the QD size dependence of the LO-phonon frequency was identified.

Originalspråkengelska
Artikelnummer014201
TidskriftJournal of Chemical Physics
Volym157
Nummer1
DOI
StatusPublished - 2022 juli 7

Ämnesklassifikation (UKÄ)

  • Atom- och molekylfysik och optik

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