Phonon-Induced Optical Dephasing in Single Organic Molecules

Chloe Clear, Ross Schofield, Kyle D Major, Jake Iles-Smith, Alex S Clark, Dara P S Mccutcheon

Research output: Contribution to journalLetter (Academic Journal)peer-review

24 Citations (Scopus)
61 Downloads (Pure)


We present a joint experiment-theory analysis of the temperature-dependent emission spectra, zero-phonon linewidth, and second-order correlation function of light emitted from a single organic molecule. We observe spectra with a zero-phonon line together with several additional sharp peaks, broad phonon sidebands, and a strongly temperature dependent homogeneous broadening. Our model includes both localized vibrational modes of the molecule and a thermal phonon bath, which we include nonperturbatively, and is able to capture all observed features. For resonant driving we measure Rabi oscillations that become increasingly damped with temperature, which our model naturally reproduces. Our results constitute an essential characterization of the photon coherence of molecules, paving the way to their use in future quantum information applications.
Original languageEnglish
Article number153602
JournalPhysical Review Letters
Publication statusPublished - 15 Apr 2020

Structured keywords

  • Bristol Quantum Information Institute
  • QETLabs


Dive into the research topics of 'Phonon-Induced Optical Dephasing in Single Organic Molecules'. Together they form a unique fingerprint.

Cite this