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. 2017 May 3;7:1435. doi: 10.1038/s41598-017-01543-4

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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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Optical setup with the Femtolasers Core laser oscillator. (a) Excitation and detection beam paths and the placement of the optical elements on 30 × 60 cm² breadboard in scale for using the Femtolasers Core laser oscillator. HighQ-2, M-Squared Sprite and CW lasers were coupled into the system by flipping mirror M4 (as shown by the cyan arrow). The xyz coordinate system is indicated as relative to the detection objective, the t-axis represents translation axis. The axis of the cylindrical lens CL is indicated by the dashed line. (b) Computer rendering of the setup. M1–M8 mirrors; DM1, DM2 dispersive mirrors; L1–L5 lenses; CL cylindrical lens; O1 excitation objective; O2 detection objective; F filters; details are given in the Methods and in the Supplementary Table S2.