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. 2020 Mar 4;9:33. doi: 10.1038/s41377-020-0269-0

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© The Author(s) 2020

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. 5 — a, b Fluorescence microscopy image of the antenna excited by a mercury lamp at 438 ± 12 nm and captured by a CCD camera with an acquisition time of 10 ms (a) or 200 ms (b). The fluorescing antenna is encircled in yellow. Note that the two lighter spots above and below the saturated antenna spot in (b) are reflections on the protecting glass before the CCD camera sensor. c Photon detection rate from the QD before (blue) and after (red) it is placed inside the antenna. The antenna is excited at 405 nm with a pulsed laser at 2.5 MHz