| Issue |
EPJ Web Conf.
Volume 255, 2021
EOS Annual Meeting (EOSAM 2021)
|
|
|---|---|---|
| Article Number | 06002 | |
| Number of page(s) | 3 | |
| Section | Topical Meeting (TOM) 8- Nonlinear and Quantum Optics | |
| DOI | https://doi.org/10.1051/epjconf/202125506002 | |
| Published online | 18 November 2021 | |
https://doi.org/10.1051/epjconf/202125506002
Indistinguishable Photons from a Single Molecule under Pulsed Excitation
1 National Institute of Optics (CNR-INO), Largo Enrico Fermi 6, Firenze, 50125, Italy
2 European Laboratory for Non-Linear Spectroscopy (LENS), Via Nello Carrara 1, Sesto, F.no 50019, Italy
3 Dipartimento di Fisica e Astronomia, Universita degli Studi di Firenze, Via G. Sansone 1, Sesto, F.no 50019, Italy
* e-mail: pietroernesto.lombardi@ino.cnr.it
** e-mail: toninelli@lens.unifi.it
Published online: 18 November 2021
Quantum light sources are crucial for the future of quantum photonic technologies and, among them, single photons on-demand are key resources in quantum communications and information processing. Ideal quantum emitters providing indistinguishable photons in a clocked manner, negligible decoherence and spectral diffusion, and with potential for scalability are today still a major challenge. We report on photostable and indistinguishable single photon emission from dibenzoterrylene molecules isolated in anthracene nanocrystals (DBT:Ac NCs) at 3K. The visibility of two-photon interference is preserved even when they are separated more than thirty times the excited-state lifetime, or ten fluorescence cycles. One of the advantages of organic molecules is the low-cost mass production of nominally identical emitters, that also allow for on-chip integration. These aspects combined with high spectral stability and coherence make them promising for applications and future quantum technologies.
© The Authors, published by EDP Sciences, 2021
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