Collectively enhanced chiral photon emission from an atomic array near a nanofiber

Jones, Ryan; Buonaiuto, Giuseppe; Lang, Ben; Lesanovsky, Igor; Olmos, Beatriz

Abstract

Emitter ensembles interact collectively with the radiation field. In the case of a one-dimensional array of atoms near a nanofiber, this collective light-matter interaction does not only lead to an increased photon coupling to the guided modes within the fiber, but also to a drastic enhancement of the chirality in the photon emission. We show that near-perfect chirality can be achieved already for moderately-sized ensembles, containing 10 to 15 atoms, by phase-matching a superradiant collective guided emission mode via an external laser field. This is of importance for developing an efficient interface between atoms and waveguide structures with unidirectional coupling, with applications in quantum computing and communication such as the development of non-reciprocal photon devices or quantum information transfer channels.

Citation

Jones, R., Buonaiuto, G., Lang, B., Lesanovsky, I., & Olmos, B. (2020). Collectively enhanced chiral photon emission from an atomic array near a nanofiber. Physical Review Letters, 124(9), Article 093601. https://doi.org/10.1103/physrevlett.124.093601

• Journal Article Type: Article
• Acceptance Date: Jan 21, 2020
• Online Publication Date: Mar 2, 2020
• Publication Date: Mar 2, 2020
• Deposit Date: Jan 23, 2020
• Publicly Available Date: Mar 2, 2020
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 124
• Issue: 9
• Article Number: 093601
• DOI: https://doi.org/10.1103/physrevlett.124.093601
• Keywords: General Physics and Astronomy
• Public URL: https://nottingham-repository.worktribe.com/output/3785741
• Publisher URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.093601