He, X. http://orcid.org/0000-0002-4982-8250
Htoon, H. http://orcid.org/0000-0003-3696-2896
Doorn, S. K. http://orcid.org/0000-0002-9535-2062
Pernice, W. H. P. http://orcid.org/0000-0003-4569-4213
Pyatkov, F. http://orcid.org/0000-0002-2232-2778
Krupke, R.
Jeantet, A.
Chassagneux, Y. http://orcid.org/0000-0002-0588-2458
Voisin, C. http://orcid.org/0000-0003-3175-9311
Article History
Received: 16 November 2017
Accepted: 14 May 2018
First Online: 18 June 2018
Change Date: 22 May 2019
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Change Date: 11 July 2018
Change Type: Correction
Change Details: In the version of this Perspective originally published, the <i>x</i>-axis label of Fig. 1d was missing; it should have read ‘Wavelength (nm)’. The units of the <i>y</i> axis of Fig. 3b were incorrect; they should have been meV. And the citation of Fig. 3c in the main text was incorrect; it should have been to Fig. 3b. These issues have now been corrected.