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. 2017 Nov 21;8:1641. doi: 10.1038/s41467-017-01773-0

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 7 — Photon statistics of single multichain aggregates measured in air. Accumulated second-order cross-correlation, g ⁽²⁾(Δτ), curves for 57 PPEB-1 a, 47 PPEB-2 b, and 44 PPEB-3 c aggregates. The aggregates were excited by laser pulses (10 MHz repetition rate) to control the difference Δτ in photon arrival time between the two detectors. The antibunching dip at Δτ = 0 is apparent. In b, photon bunching occurs for $∣Δτ∣ > 0$ , which is described by a single-exponential fit (orange)