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 The MuCLS machine was designed and constructed by Lyncean Technologies Inc. (Fremont, USA), http://lynceantech.com/.
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 We acknowledge financial support through the Centre for Advanced Laser Applications (CALA), and the DFG Gottfried Wilhelm Leibniz program. KM was supported by a Veski VPRF. KM, RG and FP completed this work with the support of the TUM Institute for Advanced Study, funded by the German Excellence Initiative and the European Union Seventh Framework Program under grant agreement no 291763 and co-funded by the European Union. LY received a fellowship from China Scholarship Council (CSC). MDo supported by NHMRC project APP1079712, and by the Cure 4 Cystic Fibrosis Foundation..