1. Institute of High‐Pressure Physics ‐ Unipress Polish Academy of Sciences ul. Sokołowska 29/37 Warszawa 01‐142 Poland
2. London Centre for Energy Engineering (LCEE), School of Engineering London South Bank University 103 Borough Road London SE1 0AA UK
3. Holonyak Micro and Nanotechnology Laboratory University of Illinois at Urbana‐Champaign Champaign IL 61801 USA
4. Tecnológico Nacional de México/Instituto Tecnológico de Tuxtla Gutiérrez Grupo de Optomecatrónica Carretera Panamericana km 1080 Tuxtla Gutiérrez C.P. 29050 México
5. Faculty of Engineering Sciences Ghulam Ishaq Khan Institute of Engineering Sciences and Technology Topi Khyber Pakhtunkhwa 23460 Pakistan