Phonon effects in quantum dot single-photon sources

Emil V. Denning, Jake Iles-Smith, Niels Gregersen, Jesper Mork

Research output: Contribution to journalArticlepeer-review


Semiconductor quantum dots are inevitably coupled to the vibrational modes of their host lattice. This interaction reduces the efficiency and the indistinguishability of single-photons emitted from semiconductor quantum dots. While the adverse effects of phonons can be significantly reduced by embedding the quantum dot in a photonic cavity, phonon-induced signatures in the emitted photons cannot be completely suppressed and constitute a fundamental limit to the ultimate performance of single-photon sources based on quantum dots. In this paper, we present a self-consistent theoretical description of phonon effects in such sources and describe their influence on the figures of merit.
Original languageEnglish
Pages (from-to)222
JournalOptical Materials Express
Issue number1
Early online date23 Dec 2019
Publication statusPublished - 1 Jan 2020


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