Silva, Alexandre D.
Serpa, Carlos http://orcid.org/0000-0001-7004-0110
Arnaut, Luis G. http://orcid.org/0000-0002-3223-4819
Article History
Received: 1 June 2018
Accepted: 9 November 2018
First Online: 22 February 2019
Competing Interests
: C.S. and L.G.A. are authors of a licensed family of patents (WO2012144916 (A3)) related with the piezophotonic materials used. C.S. and L.G.A. were founders and own equity of the spin-off company that provided the piezophotonic materials. A.D.S. declares no competing financial interests.