Kock, Ole
He, Wei
Świerad, Dariusz
Smith, Lyndsie
Hughes, Joshua
Bongs, Kai
Singh, Yeshpal
Article History
Received: 17 November 2015
Accepted: 25 October 2016
First Online: 18 November 2016
Change Date: 16 January 2017
Change Type: Update
Change Details: The version of this Article previously published contained a typographical error in the legend of Figure 4 which incorrectly read ‘Figure 4. Bongs Observation of fluorescence with no direct line of sight of Sr vapour emission’. This has now been corrected in the PDF and HTML version of the paper.
Competing interests
: The authors declare no competing financial interests.