Alfaro-Mozaz, F. J.
Rodrigo, S. G. http://orcid.org/0000-0001-6575-168X
Alonso-González, P. http://orcid.org/0000-0002-4597-9326
Vélez, S. http://orcid.org/0000-0002-0019-2271
Dolado, I.
Casanova, F.
Hueso, L. E.
Martín-Moreno, L. http://orcid.org/0000-0001-9273-8165
Hillenbrand, R.
Nikitin, A. Y.
Article History
Received: 10 October 2018
Accepted: 27 November 2018
First Online: 3 January 2019
Competing interests
: R.H. is a co-founder of Neaspec GmbH, a company producing scattering-type scanning near-field optical microscope systems such as the one used in this study. The other authors declare no competing interests.