Ho, W. H. http://orcid.org/0000-0002-8739-9151
Tshimanga, I. J.
Ngoepe, M. N. http://orcid.org/0000-0002-3639-9063
Jermy, M. C. http://orcid.org/0000-0002-9374-7570
Geoghegan, P. H. http://orcid.org/0000-0003-1224-0477
Funding for this research was provided by:
National Research Foundation (KIC111061)
African Laser Centre, Council for Scientific and Industrial Research (ALC-R017)
Article History
Received: 16 August 2019
Accepted: 20 November 2019
First Online: 9 December 2019