Polman, Albert http://orcid.org/0000-0002-0685-3886
Kociak, Mathieu http://orcid.org/0000-0001-8858-0449
GarcĂa de Abajo, F. Javier http://orcid.org/0000-0002-4970-4565
Article History
Received: 28 October 2018
Revised: 4 May 2019
Accepted: 14 May 2019
First Online: 15 July 2019
Competing interests
: A.P. is co-founder and co-owner of Delmic BV, a company that produces commercial cathodoluminescence systems.