Phonon-induced optical dephasing in single organic molecules
| Autor: | Kyle D. Major, Alex S. Clark, Chloe Clear, Dara P. S. McCutcheon, Jake Iles-Smith, Ross C. Schofield |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
General Physics
Photon Rabi cycle Phonon Dephasing Physics Multidisciplinary LINE General Physics and Astronomy FOS: Physical sciences PHOTONS 01 natural sciences Molecular physics Bristol Quantum Information Institute 09 Engineering Spectral line Laser linewidth QETLabs DIBENZOTERRYLENE MOLECULES ELASTIC-CONSTANTS 0103 physical sciences Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ANTHRACENE CRYSTAL Emission spectrum 010306 general physics 01 Mathematical Sciences Physics Quantum Physics Science & Technology SPECTROSCOPY 02 Physical Sciences Condensed Matter - Mesoscale and Nanoscale Physics 3. Good health Physical Sciences Homogeneous broadening Quantum Physics (quant-ph) |
| Zdroj: | Clear, C, Schofield, R, Major, K D, Iles-Smith, J, Clark, A S & Mccutcheon, D P S 2020, ' Phonon-Induced Optical Dephasing in Single Organic Molecules ', Physical Review Letters, vol. 124, 153602 . https://doi.org/10.1103/PhysRevLett.124.153602 Clear, C, Schofield, R C, Major, K D, Iles-Smith, J, Clark, A S & McCutcheon, D P S 2020, ' Phonon-Induced Optical Dephasing in Single Organic Molecules ', Physical Review Letters, vol. 124, no. 15, 153602 . https://doi.org/10.1103/physrevlett.124.153602 153602 – 6 153602 – 1 |
| DOI: | 10.1103/PhysRevLett.124.153602 |
| Popis: | Organic molecules have recently gained attention as novel sources of single photons. 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 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 localised vibrational modes of the molecule and a thermal phonon bath, which we include non-perturbatively, and is able 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 characterisation of the photon coherence of these promising molecules, paving the way towards their use in future quantum information applications. Main text: 5 pages with 3 figures. Supplementary: 8 pages with 4 figures |
| Databáze: | OpenAIRE |
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